<!DOCTYPE html> <html> <head> <title>Try jQuery Online</title> <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script> $(document).ready(function() { var text = ""; for(var i = 0 ; i < 100 ; i ++) { for(var j = 0 ; j < 4 ; j++) { text += Math.floor((Math.random() * 10)); } text += " "; } $("#copyTarget").val(text); $("#copyBtn").click(function(){ copyToClipboard(document.getElementById("copyTarget")); }); }); function copyToClipboard(elem) { // create hidden text element, if it doesn't already exist var 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 copy target = elem; origSelectionStart = elem.selectionStart; origSelectionEnd = elem.selectionEnd; } else { // must use a temporary form element for the selection and copy target = 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 content var currentFocus = document.activeElement; target.focus(); target.setSelectionRange(0, target.value.length); // copy the selection var succeed; try { succeed = document.execCommand("copy"); } catch(e) { succeed = false; } // restore original focus if (currentFocus && typeof currentFocus.focus === "function") { currentFocus.focus(); } if (isInput) { // restore prior selection elem.setSelectionRange(origSelectionStart, origSelectionEnd); } else { // clear temporary content target.textContent = ""; } return succeed; } </script> <style> .selected { color:red; } .highlight { background:yellow; } </style> </head> <body> <input type="button" id="copyBtn" value="copyBtn" /> <input type="text" id="copyTarget" /> </body> </html>
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