[英]Javascript: Remove the image from browser
Following is the code I copied from the internet to show the preview of the image before uploading to the server. 以下是我从互联网复制的代码,以显示图像的预览,然后再上传到服务器。 If I click upload image it triggers click event on input element and uploads the image. 如果我单击上载图像,它将触发输入元素上的click事件并上载图像。 likewise if I cick on Delete I want to remove it from input element or from the web storage itself, I want to remove only that particular image so that it will not be processed by the server. 同样,如果我单击Delete(删除),则想从输入元素或Web存储本身中删除它,那么我只想删除该特定图像,这样服务器就不会对其进行处理。
<input type="file" id="files" />
<img id="image" />
<div id="uploadimage"> upload image</div>
<a href="#"> Delete</a>
<script>
document.getElementById("uploadimage").onclick=function(){
document.getElementById("files").click();
};
document.getElementById("files").onchange = function () {
var reader = new FileReader();
reader.onload = function (e) {
// get loaded data and render thumbnail.
document.getElementById("image").src = e.target.result;
};
// read the image file as a data URL.
reader.readAsDataURL(this.files[0]);
};
</script>
Thanks in advance 提前致谢
You can add id
attribute to the link and complete the javascript with the following code: 您可以将id
属性添加到链接,并使用以下代码完成javascript:
document.getElementById("delete").onclick = function () {
document.getElementById("image").src = null;
document.getElementById("files").value = '';
return false;
};
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