JavaScript: copy content to clipboard code, javascript code

JavaScript: copy content to clipboard code, javascript code

Recently, a front-end project has been created, where you need to copy the values in the input or textarea directly to the Clipboard through the button. The following small series will share with you my Implementation ideas and code. You can directly introduce them to the project.

The Code is as follows:

function copyToClipboard(elem) {// create hidden text element, if it doesn't already existvar targetId = "_hiddenCopyText_";var isInput = elem.tagName === "INPUT" || elem.tagName === "TEXTAREA";var origSelectionStart, origSelectionEnd;if (isInput) {// can just use the original source element for the selection and copytarget = elem;origSelectionStart = elem.selectionStart;origSelectionEnd = elem.selectionEnd;} else {// must use a temporary form element for the selection and copytarget = document.getElementById(targetId);if (!target) {var target = document.createElement("textarea");target.style.position = "absolute";target.style.left = "-9999px";target.style.top = "0";target.id = targetId;document.body.appendChild(target);}target.textContent = elem.textContent;}// select the contentvar currentFocus = document.activeElement;target.focus();target.setSelectionRange(0, target.value.length);// copy the selectionvar succeed;try {succeed = document.execCommand("copy");} catch(e) {succeed = false;}// restore original focusif (currentFocus && typeof currentFocus.focus === "function") {currentFocus.focus();}if (isInput) {// restore prior selectionelem.setSelectionRange(origSelectionStart, origSelectionEnd);} else {// clear temporary contenttarget.textContent = "";}return succeed;}

We can directly call this method as follows:

copyToClipboard(document.getElementById("name"));

In this way, the value of id as name enters the clipboard.

I will introduce the JavaScript implementation and copy content to the clipboard code editor here. I hope it will be helpful to you!

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