回答編集履歴
3
追記
test
CHANGED
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@@ -54,6 +54,8 @@
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54
54
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55
55
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---
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56
56
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57
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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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58
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+
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57
59
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```HTML
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60
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61
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<!DOCTYPE html>
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@@ -82,19 +84,19 @@
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82
84
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83
85
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$("#fileUpload").on("change", function () {
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84
86
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85
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-
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87
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+
let fileReader = new FileReader();
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86
88
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87
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-
fileReader.onload = function (
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89
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+
fileReader.onload = function () {
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88
90
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89
91
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let image = new Image();
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90
92
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91
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-
image.src = e
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93
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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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92
94
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93
95
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image.onload = function () {
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94
96
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95
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alert(image.width + " : " + image.height);
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96
98
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97
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-
$('#uploadImage').attr("src",
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99
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$('#uploadImage').attr("src", image.src);//画像のURLをソースに設定
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98
100
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99
101
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};
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100
102
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2
追記
test
CHANGED
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@@ -28,7 +28,7 @@
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28
28
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29
29
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$("#fileUpload").on("change", function () {
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30
30
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31
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-
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31
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+
let fileReader = new FileReader();
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32
32
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33
33
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fileReader.onload = function (e) {
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34
34
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1
追記
test
CHANGED
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@@ -49,3 +49,67 @@
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49
49
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</html>
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50
50
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51
51
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```
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52
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+
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53
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+
追記
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54
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+
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55
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+
---
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56
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+
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57
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+
```HTML
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58
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59
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<!DOCTYPE html>
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60
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61
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<html lang="ja">
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62
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63
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<head>
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64
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65
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<meta charset="utf-8">
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66
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67
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<title>タイトル</title>
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68
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69
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</head>
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70
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71
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<body>
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72
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73
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<input type="file" id="fileUpload">
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74
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+
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75
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<img src="#" id="uploadImage" alt="アップロード">
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76
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+
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77
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<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
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78
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+
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79
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+
<script>
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80
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+
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81
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$(document).ready(function () {
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82
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+
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83
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+
$("#fileUpload").on("change", function () {
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84
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+
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85
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var fileReader = new FileReader();
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86
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+
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87
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fileReader.onload = function (e) {
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88
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89
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let image = new Image();
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90
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91
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image.src = e.target.result;
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92
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93
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image.onload = function () {
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94
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95
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alert(image.width + " : " + image.height);
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96
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97
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$('#uploadImage').attr("src", e.target.result);
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98
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99
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};
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100
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+
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101
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};
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102
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+
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103
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fileReader.readAsDataURL(this.files[0]);
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104
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105
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});
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106
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107
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});
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108
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+
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109
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+
</script>
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110
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+
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111
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+
</body>
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112
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113
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</html>
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114
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+
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115
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+
```
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