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Copy pathindex.html
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55 lines (47 loc) · 1.4 KB
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>createObjectURL</title>
</head>
<body>
<input type="file" multiple id='fileInput' onchange="useFileReaderPreivewFiles(this.files)" />
<ul id="preview">
</ul>
<script>
const inputEl = document.getElementById('fileInput')
const ulEle = document.getElementById('preview')
function useFileReaderPreivewFiles(files) {
Array.from(files).forEach(file => {
const reader = new FileReader()
const li = document.createElement('li')
ulEle.appendChild(li)
reader.onload = function (e) {
const img = new Image()
img.height = 100
img.width = 100
img.src = e.target.result
li.appendChild(img)
}
reader.readAsDataURL(file)
})
}
function previewFiles(files) {
Array.from(files).forEach(file => {
const li = document.createElement('li')
ulEle.appendChild(li)
const img = document.createElement('img')
img.src = URL.createObjectURL(file, { oneTimeOnly: true })
img.height = 100
img.width = 100
img.onload = function () {
URL.revokeObjectURL(this.src)
}
li.appendChild(img)
})
}
</script>
</body>
</html>