回答編集履歴
3
追記
answer
CHANGED
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@@ -26,6 +26,7 @@
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26
26
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```
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27
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追記
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28
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---
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29
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+
Image()を使うことでwidth, heightが取得できると思いますが。
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29
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```HTML
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<!DOCTYPE html>
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<html lang="ja">
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@@ -40,13 +41,13 @@
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<script>
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$(document).ready(function () {
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$("#fileUpload").on("change", function () {
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43
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-
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44
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+
let fileReader = new FileReader();
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44
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-
fileReader.onload = function (
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45
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fileReader.onload = function () {
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45
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let image = new Image();
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46
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-
image.src =
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47
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image.src = fileReader.result;//読み込まれたファイルの内容
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image.onload = function () {
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alert(image.width + " : " + image.height);
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49
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-
$('#uploadImage').attr("src",
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50
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$('#uploadImage').attr("src", image.src);//画像のURLをソースに設定
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};
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};
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fileReader.readAsDataURL(this.files[0]);
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2
追記
answer
CHANGED
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@@ -13,7 +13,7 @@
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13
13
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<script>
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$(document).ready(function () {
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$("#fileUpload").on("change", function () {
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16
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-
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let fileReader = new FileReader();
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fileReader.onload = function (e) {
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$('#uploadImage').attr('src', e.target.result);
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};
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1
追記
answer
CHANGED
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@@ -23,4 +23,36 @@
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23
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</script>
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</body>
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</html>
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26
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```
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追記
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28
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---
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29
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```HTML
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30
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<!DOCTYPE html>
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31
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<html lang="ja">
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32
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<head>
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33
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<meta charset="utf-8">
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34
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<title>タイトル</title>
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35
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</head>
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36
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<body>
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37
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<input type="file" id="fileUpload">
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38
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<img src="#" id="uploadImage" alt="アップロード">
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39
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<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
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40
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<script>
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41
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$(document).ready(function () {
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42
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$("#fileUpload").on("change", function () {
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43
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var fileReader = new FileReader();
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44
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fileReader.onload = function (e) {
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45
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let image = new Image();
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46
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image.src = e.target.result;
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47
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image.onload = function () {
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48
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alert(image.width + " : " + image.height);
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49
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$('#uploadImage').attr("src", e.target.result);
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50
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};
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51
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};
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52
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fileReader.readAsDataURL(this.files[0]);
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53
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});
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54
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});
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55
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</script>
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56
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</body>
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57
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</html>
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26
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```
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