質問編集履歴
3
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body
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@@ -5,39 +5,11 @@
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5
5
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6
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```HTML
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7
7
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8
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-
<p class="q-body">
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9
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<input id="q6-1" type="text" size="4"></input>
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10
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<select id="op6">
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11
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<option>＋</option>
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12
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<option>‐</option>
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13
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<option>×</option>
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14
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<option>÷</option>
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15
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<input id="q6-2" type="text" size="4"></input>
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16
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<button id="q6-btn">計算</button><br>
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計算結果：<span id="q6result"></span>
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18
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</p>
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19
8
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20
9
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```
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10
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11
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```JavaScript
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12
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24
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var btn6 = document.getElementById("q6-btn");
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25
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var elm6 = document.getElementById("q6result");
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26
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btn6.onclick = click6;
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27
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function click6(){
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28
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var input6_left = document.getElementById("q6-1").value;
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29
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var select = document.getElementById("op6");
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30
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var input6_right = document.getElementById("q6-2").value;
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31
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if(Number(select) === +){
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32
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elm5.textContent = Number(input6_left) + Number(input6_right);
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33
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} else if(Number(select) === -){
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34
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elm5.textContent = Number(input6_left) - Number(input6_right);
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35
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} else if(Number(select) === *){
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36
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elm5.textContent = Number(input6_left) * Number(input6_right);
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37
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} else {
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38
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elm5.textContent = Number(input6_left) / Number(input6_right);
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39
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}
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40
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}
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41
13
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42
14
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```
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43
15
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body
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@@ -32,7 +32,7 @@
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32
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elm5.textContent = Number(input6_left) + Number(input6_right);
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33
33
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} else if(Number(select) === -){
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34
34
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elm5.textContent = Number(input6_left) - Number(input6_right);
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35
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-
} else if(Number(select) ===
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35
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+
} else if(Number(select) === *){
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36
36
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elm5.textContent = Number(input6_left) * Number(input6_right);
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37
37
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} else {
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38
38
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elm5.textContent = Number(input6_left) / Number(input6_right);
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1
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body
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@@ -21,13 +21,13 @@
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21
21
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22
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```JavaScript
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23
23
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24
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var btn6 = document.getElementById("q6-btn");
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24
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+
var btn6 = document.getElementById("q6-btn");
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25
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-
var elm6 = document.getElementById("q6result");
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25
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+
var elm6 = document.getElementById("q6result");
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26
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-
btn6.onclick = click6;
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26
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+
btn6.onclick = click6;
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27
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-
function click6(){
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27
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+
function click6(){
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28
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-
var input6_left = document.getElementById("q6-1").value;
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28
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+
var input6_left = document.getElementById("q6-1").value;
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29
29
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var select = document.getElementById("op6");
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30
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var input6_right = document.getElementById("q6-2").value;
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30
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+
var input6_right = document.getElementById("q6-2").value;
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31
31
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if(Number(select) === +){
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32
32
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elm5.textContent = Number(input6_left) + Number(input6_right);
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33
33
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} else if(Number(select) === -){
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