質問編集履歴
6
不要なソースコードを削除
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```ここに言語を入力
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javascriptのソースコード
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'use strict';
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(() => {
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class ClockDrawer {
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constructor(canvas) {
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this.ctx = canvas.getContext('2d');
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this.width = canvas.width;
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this.height = canvas.height;
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}
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draw(angle, func) {
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this.ctx.save();
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this.ctx.translate(this.width / 2, this.height / 2);
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this.ctx.rotate(Math.PI / 180 * angle);
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this.ctx.beginPath();
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func(this.ctx);
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this.ctx.stroke();
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this.ctx.restore();
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}
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clear() {
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this.ctx.clearRect(0, 0, this.width, this.height);
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}
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}
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class Clock {
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constructor(drawer) {
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this.r = 100;
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this.drawer = drawer;
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}
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drawFace() {
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for (let angle = 0; angle < 360; angle += 6) {
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this.drawer.draw(angle, ctx => {
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ctx.moveTo(0, -this.r);
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if (angle % 30 === 0) {
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ctx.lineWidth = 2;
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ctx.lineTo(0, -this.r + 10);
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ctx.font = '13px Arial';
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ctx.textAlign = 'center';
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ctx.fillText(angle / 30 || 12, 0, -this.r + 25);
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} else {
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ctx.lineTo(0, -this.r + 5);
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}
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});
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}
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}
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drawHands() {
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// hour
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this.drawer.draw(this.h * 30 + this.m * 0.5, ctx => {
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ctx.lineWidth = 6;
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ctx.moveTo(0, 10);
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ctx.lineTo(0, -this.r + 50);
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});
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// minute
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this.drawer.draw(this.m * 6, ctx => {
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ctx.lineWidth = 4;
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ctx.moveTo(0, 10);
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ctx.lineTo(0, -this.r + 30);
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});
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// second
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this.drawer.draw(this.s * 6, ctx => {
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ctx.strokeStyle = 'red';
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ctx.moveTo(0, 20);
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ctx.lineTo(0, -this.r + 20);
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});
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}
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update() {
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this.h = (new Date()).getHours();
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this.m = (new Date()).getMinutes();
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this.s = (new Date()).getSeconds();
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}
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run() {
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this.update();
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this.drawer.clear();
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this.drawFace();
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this.drawHands();
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setTimeout(() => {
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this.run();
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}, 100);
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}
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}
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const canvas = document.querySelector('canvas');
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if (typeof canvas.getContext === 'undefined') {
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return;
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}
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const clock = new Clock(new ClockDrawer(canvas));
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clock.run();
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})();
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1
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```超超初心者です。難しいプログラミング用語は分かりません…。
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2
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wordpressでブログを作成しています。(テーマはcocoon)
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5
ご追記の削除
test
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test
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@@ -231,7 +231,3 @@
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![イメージ説明](9c0c00df925504d9e8cddb69c456f9d2.png)
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[サイトURL](https://japan-thinks.com)
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サイトのURLの追記
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test
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@@ -231,3 +231,7 @@
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![イメージ説明](9c0c00df925504d9e8cddb69c456f9d2.png)
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[サイトURL](https://japan-thinks.com)
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3
codeを<code>タグで挿入しなおしました。
test
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test
CHANGED
@@ -1,3 +1,5 @@
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```ここに言語を入力
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3
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javascriptのソースコード
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'use strict';
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@@ -202,12 +204,6 @@
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})();
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```ここに言語を入力
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コード
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207
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```超超初心者です。難しいプログラミング用語は分かりません…。
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208
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209
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wordpressでブログを作成しています。(テーマはcocoon)
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2
codeを<code>タグで挿入しなおしました。
test
CHANGED
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test
CHANGED
@@ -1,4 +1,214 @@
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javascriptのソースコード
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'use strict';
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(() => {
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class ClockDrawer {
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constructor(canvas) {
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this.ctx = canvas.getContext('2d');
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this.width = canvas.width;
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this.height = canvas.height;
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}
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draw(angle, func) {
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this.ctx.save();
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this.ctx.translate(this.width / 2, this.height / 2);
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this.ctx.rotate(Math.PI / 180 * angle);
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this.ctx.beginPath();
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func(this.ctx);
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this.ctx.stroke();
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this.ctx.restore();
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}
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clear() {
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this.ctx.clearRect(0, 0, this.width, this.height);
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}
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}
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class Clock {
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constructor(drawer) {
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this.r = 100;
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this.drawer = drawer;
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}
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drawFace() {
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for (let angle = 0; angle < 360; angle += 6) {
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this.drawer.draw(angle, ctx => {
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ctx.moveTo(0, -this.r);
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if (angle % 30 === 0) {
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ctx.lineWidth = 2;
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ctx.lineTo(0, -this.r + 10);
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ctx.font = '13px Arial';
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ctx.textAlign = 'center';
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ctx.fillText(angle / 30 || 12, 0, -this.r + 25);
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} else {
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ctx.lineTo(0, -this.r + 5);
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}
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});
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}
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}
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drawHands() {
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106
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107
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// hour
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108
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109
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this.drawer.draw(this.h * 30 + this.m * 0.5, ctx => {
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ctx.lineWidth = 6;
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112
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113
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ctx.moveTo(0, 10);
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ctx.lineTo(0, -this.r + 50);
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});
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120
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// minute
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122
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123
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this.drawer.draw(this.m * 6, ctx => {
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124
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125
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ctx.lineWidth = 4;
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126
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+
|
127
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ctx.moveTo(0, 10);
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ctx.lineTo(0, -this.r + 30);
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});
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// second
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136
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137
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this.drawer.draw(this.s * 6, ctx => {
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138
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ctx.strokeStyle = 'red';
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140
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141
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ctx.moveTo(0, 20);
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ctx.lineTo(0, -this.r + 20);
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});
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}
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update() {
|
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153
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this.h = (new Date()).getHours();
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155
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this.m = (new Date()).getMinutes();
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157
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this.s = (new Date()).getSeconds();
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}
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run() {
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this.update();
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this.drawer.clear();
|
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this.drawFace();
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this.drawHands();
|
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setTimeout(() => {
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this.run();
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}, 100);
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}
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}
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const canvas = document.querySelector('canvas');
|
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|
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if (typeof canvas.getContext === 'undefined') {
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return;
|
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+
|
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}
|
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|
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|
199
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const clock = new Clock(new ClockDrawer(canvas));
|
200
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|
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clock.run();
|
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|
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})();
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205
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+
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206
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+
|
207
|
+
```ここに言語を入力
|
208
|
+
|
209
|
+
コード
|
210
|
+
|
1
|
-
超超初心者です。難しいプログラミング用語は分かりません…。
|
211
|
+
```超超初心者です。難しいプログラミング用語は分かりません…。
|
2
212
|
|
3
213
|
wordpressでブログを作成しています。(テーマはcocoon)
|
4
214
|
|
@@ -25,211 +235,3 @@
|
|
25
235
|
|
26
236
|
|
27
237
|
![イメージ説明](9c0c00df925504d9e8cddb69c456f9d2.png)
|
28
|
-
|
29
|
-
|
30
|
-
|
31
|
-
|
32
|
-
|
33
|
-
javascriptのソースコード
|
34
|
-
|
35
|
-
'use strict';
|
36
|
-
|
37
|
-
|
38
|
-
|
39
|
-
(() => {
|
40
|
-
|
41
|
-
class ClockDrawer {
|
42
|
-
|
43
|
-
constructor(canvas) {
|
44
|
-
|
45
|
-
this.ctx = canvas.getContext('2d');
|
46
|
-
|
47
|
-
this.width = canvas.width;
|
48
|
-
|
49
|
-
this.height = canvas.height;
|
50
|
-
|
51
|
-
}
|
52
|
-
|
53
|
-
|
54
|
-
|
55
|
-
draw(angle, func) {
|
56
|
-
|
57
|
-
this.ctx.save();
|
58
|
-
|
59
|
-
|
60
|
-
|
61
|
-
this.ctx.translate(this.width / 2, this.height / 2);
|
62
|
-
|
63
|
-
this.ctx.rotate(Math.PI / 180 * angle);
|
64
|
-
|
65
|
-
|
66
|
-
|
67
|
-
this.ctx.beginPath();
|
68
|
-
|
69
|
-
func(this.ctx);
|
70
|
-
|
71
|
-
this.ctx.stroke();
|
72
|
-
|
73
|
-
|
74
|
-
|
75
|
-
this.ctx.restore();
|
76
|
-
|
77
|
-
}
|
78
|
-
|
79
|
-
|
80
|
-
|
81
|
-
clear() {
|
82
|
-
|
83
|
-
this.ctx.clearRect(0, 0, this.width, this.height);
|
84
|
-
|
85
|
-
}
|
86
|
-
|
87
|
-
}
|
88
|
-
|
89
|
-
|
90
|
-
|
91
|
-
class Clock {
|
92
|
-
|
93
|
-
constructor(drawer) {
|
94
|
-
|
95
|
-
this.r = 100;
|
96
|
-
|
97
|
-
this.drawer = drawer;
|
98
|
-
|
99
|
-
}
|
100
|
-
|
101
|
-
|
102
|
-
|
103
|
-
drawFace() {
|
104
|
-
|
105
|
-
for (let angle = 0; angle < 360; angle += 6) {
|
106
|
-
|
107
|
-
this.drawer.draw(angle, ctx => {
|
108
|
-
|
109
|
-
ctx.moveTo(0, -this.r);
|
110
|
-
|
111
|
-
if (angle % 30 === 0) {
|
112
|
-
|
113
|
-
ctx.lineWidth = 2;
|
114
|
-
|
115
|
-
ctx.lineTo(0, -this.r + 10);
|
116
|
-
|
117
|
-
ctx.font = '13px Arial';
|
118
|
-
|
119
|
-
ctx.textAlign = 'center';
|
120
|
-
|
121
|
-
ctx.fillText(angle / 30 || 12, 0, -this.r + 25);
|
122
|
-
|
123
|
-
} else {
|
124
|
-
|
125
|
-
ctx.lineTo(0, -this.r + 5);
|
126
|
-
|
127
|
-
}
|
128
|
-
|
129
|
-
});
|
130
|
-
|
131
|
-
}
|
132
|
-
|
133
|
-
}
|
134
|
-
|
135
|
-
|
136
|
-
|
137
|
-
drawHands() {
|
138
|
-
|
139
|
-
// hour
|
140
|
-
|
141
|
-
this.drawer.draw(this.h * 30 + this.m * 0.5, ctx => {
|
142
|
-
|
143
|
-
ctx.lineWidth = 6;
|
144
|
-
|
145
|
-
ctx.moveTo(0, 10);
|
146
|
-
|
147
|
-
ctx.lineTo(0, -this.r + 50);
|
148
|
-
|
149
|
-
});
|
150
|
-
|
151
|
-
|
152
|
-
|
153
|
-
// minute
|
154
|
-
|
155
|
-
this.drawer.draw(this.m * 6, ctx => {
|
156
|
-
|
157
|
-
ctx.lineWidth = 4;
|
158
|
-
|
159
|
-
ctx.moveTo(0, 10);
|
160
|
-
|
161
|
-
ctx.lineTo(0, -this.r + 30);
|
162
|
-
|
163
|
-
});
|
164
|
-
|
165
|
-
|
166
|
-
|
167
|
-
// second
|
168
|
-
|
169
|
-
this.drawer.draw(this.s * 6, ctx => {
|
170
|
-
|
171
|
-
ctx.strokeStyle = 'red';
|
172
|
-
|
173
|
-
ctx.moveTo(0, 20);
|
174
|
-
|
175
|
-
ctx.lineTo(0, -this.r + 20);
|
176
|
-
|
177
|
-
});
|
178
|
-
|
179
|
-
}
|
180
|
-
|
181
|
-
|
182
|
-
|
183
|
-
update() {
|
184
|
-
|
185
|
-
this.h = (new Date()).getHours();
|
186
|
-
|
187
|
-
this.m = (new Date()).getMinutes();
|
188
|
-
|
189
|
-
this.s = (new Date()).getSeconds();
|
190
|
-
|
191
|
-
}
|
192
|
-
|
193
|
-
|
194
|
-
|
195
|
-
run() {
|
196
|
-
|
197
|
-
this.update();
|
198
|
-
|
199
|
-
|
200
|
-
|
201
|
-
this.drawer.clear();
|
202
|
-
|
203
|
-
this.drawFace();
|
204
|
-
|
205
|
-
this.drawHands();
|
206
|
-
|
207
|
-
|
208
|
-
|
209
|
-
setTimeout(() => {
|
210
|
-
|
211
|
-
this.run();
|
212
|
-
|
213
|
-
}, 100);
|
214
|
-
|
215
|
-
}
|
216
|
-
|
217
|
-
}
|
218
|
-
|
219
|
-
|
220
|
-
|
221
|
-
const canvas = document.querySelector('canvas');
|
222
|
-
|
223
|
-
if (typeof canvas.getContext === 'undefined') {
|
224
|
-
|
225
|
-
return;
|
226
|
-
|
227
|
-
}
|
228
|
-
|
229
|
-
|
230
|
-
|
231
|
-
const clock = new Clock(new ClockDrawer(canvas));
|
232
|
-
|
233
|
-
clock.run();
|
234
|
-
|
235
|
-
})();
|
1
javascriptのソースコードの追記
test
CHANGED
File without changes
|
test
CHANGED
@@ -25,3 +25,211 @@
|
|
25
25
|
|
26
26
|
|
27
27
|
![イメージ説明](9c0c00df925504d9e8cddb69c456f9d2.png)
|
28
|
+
|
29
|
+
|
30
|
+
|
31
|
+
|
32
|
+
|
33
|
+
javascriptのソースコード
|
34
|
+
|
35
|
+
'use strict';
|
36
|
+
|
37
|
+
|
38
|
+
|
39
|
+
(() => {
|
40
|
+
|
41
|
+
class ClockDrawer {
|
42
|
+
|
43
|
+
constructor(canvas) {
|
44
|
+
|
45
|
+
this.ctx = canvas.getContext('2d');
|
46
|
+
|
47
|
+
this.width = canvas.width;
|
48
|
+
|
49
|
+
this.height = canvas.height;
|
50
|
+
|
51
|
+
}
|
52
|
+
|
53
|
+
|
54
|
+
|
55
|
+
draw(angle, func) {
|
56
|
+
|
57
|
+
this.ctx.save();
|
58
|
+
|
59
|
+
|
60
|
+
|
61
|
+
this.ctx.translate(this.width / 2, this.height / 2);
|
62
|
+
|
63
|
+
this.ctx.rotate(Math.PI / 180 * angle);
|
64
|
+
|
65
|
+
|
66
|
+
|
67
|
+
this.ctx.beginPath();
|
68
|
+
|
69
|
+
func(this.ctx);
|
70
|
+
|
71
|
+
this.ctx.stroke();
|
72
|
+
|
73
|
+
|
74
|
+
|
75
|
+
this.ctx.restore();
|
76
|
+
|
77
|
+
}
|
78
|
+
|
79
|
+
|
80
|
+
|
81
|
+
clear() {
|
82
|
+
|
83
|
+
this.ctx.clearRect(0, 0, this.width, this.height);
|
84
|
+
|
85
|
+
}
|
86
|
+
|
87
|
+
}
|
88
|
+
|
89
|
+
|
90
|
+
|
91
|
+
class Clock {
|
92
|
+
|
93
|
+
constructor(drawer) {
|
94
|
+
|
95
|
+
this.r = 100;
|
96
|
+
|
97
|
+
this.drawer = drawer;
|
98
|
+
|
99
|
+
}
|
100
|
+
|
101
|
+
|
102
|
+
|
103
|
+
drawFace() {
|
104
|
+
|
105
|
+
for (let angle = 0; angle < 360; angle += 6) {
|
106
|
+
|
107
|
+
this.drawer.draw(angle, ctx => {
|
108
|
+
|
109
|
+
ctx.moveTo(0, -this.r);
|
110
|
+
|
111
|
+
if (angle % 30 === 0) {
|
112
|
+
|
113
|
+
ctx.lineWidth = 2;
|
114
|
+
|
115
|
+
ctx.lineTo(0, -this.r + 10);
|
116
|
+
|
117
|
+
ctx.font = '13px Arial';
|
118
|
+
|
119
|
+
ctx.textAlign = 'center';
|
120
|
+
|
121
|
+
ctx.fillText(angle / 30 || 12, 0, -this.r + 25);
|
122
|
+
|
123
|
+
} else {
|
124
|
+
|
125
|
+
ctx.lineTo(0, -this.r + 5);
|
126
|
+
|
127
|
+
}
|
128
|
+
|
129
|
+
});
|
130
|
+
|
131
|
+
}
|
132
|
+
|
133
|
+
}
|
134
|
+
|
135
|
+
|
136
|
+
|
137
|
+
drawHands() {
|
138
|
+
|
139
|
+
// hour
|
140
|
+
|
141
|
+
this.drawer.draw(this.h * 30 + this.m * 0.5, ctx => {
|
142
|
+
|
143
|
+
ctx.lineWidth = 6;
|
144
|
+
|
145
|
+
ctx.moveTo(0, 10);
|
146
|
+
|
147
|
+
ctx.lineTo(0, -this.r + 50);
|
148
|
+
|
149
|
+
});
|
150
|
+
|
151
|
+
|
152
|
+
|
153
|
+
// minute
|
154
|
+
|
155
|
+
this.drawer.draw(this.m * 6, ctx => {
|
156
|
+
|
157
|
+
ctx.lineWidth = 4;
|
158
|
+
|
159
|
+
ctx.moveTo(0, 10);
|
160
|
+
|
161
|
+
ctx.lineTo(0, -this.r + 30);
|
162
|
+
|
163
|
+
});
|
164
|
+
|
165
|
+
|
166
|
+
|
167
|
+
// second
|
168
|
+
|
169
|
+
this.drawer.draw(this.s * 6, ctx => {
|
170
|
+
|
171
|
+
ctx.strokeStyle = 'red';
|
172
|
+
|
173
|
+
ctx.moveTo(0, 20);
|
174
|
+
|
175
|
+
ctx.lineTo(0, -this.r + 20);
|
176
|
+
|
177
|
+
});
|
178
|
+
|
179
|
+
}
|
180
|
+
|
181
|
+
|
182
|
+
|
183
|
+
update() {
|
184
|
+
|
185
|
+
this.h = (new Date()).getHours();
|
186
|
+
|
187
|
+
this.m = (new Date()).getMinutes();
|
188
|
+
|
189
|
+
this.s = (new Date()).getSeconds();
|
190
|
+
|
191
|
+
}
|
192
|
+
|
193
|
+
|
194
|
+
|
195
|
+
run() {
|
196
|
+
|
197
|
+
this.update();
|
198
|
+
|
199
|
+
|
200
|
+
|
201
|
+
this.drawer.clear();
|
202
|
+
|
203
|
+
this.drawFace();
|
204
|
+
|
205
|
+
this.drawHands();
|
206
|
+
|
207
|
+
|
208
|
+
|
209
|
+
setTimeout(() => {
|
210
|
+
|
211
|
+
this.run();
|
212
|
+
|
213
|
+
}, 100);
|
214
|
+
|
215
|
+
}
|
216
|
+
|
217
|
+
}
|
218
|
+
|
219
|
+
|
220
|
+
|
221
|
+
const canvas = document.querySelector('canvas');
|
222
|
+
|
223
|
+
if (typeof canvas.getContext === 'undefined') {
|
224
|
+
|
225
|
+
return;
|
226
|
+
|
227
|
+
}
|
228
|
+
|
229
|
+
|
230
|
+
|
231
|
+
const clock = new Clock(new ClockDrawer(canvas));
|
232
|
+
|
233
|
+
clock.run();
|
234
|
+
|
235
|
+
})();
|