Javascript implements code to highlight keywords in the page_javascript skills

Copy code The code is as follows:

How to obtain information. The word "Baidu" comes from the line "Searching for others in thousands of Baidu" in "The Blue Jade Case·Yuan Xi" by the Chinese Song Dynasty poet Xin Qiji, symbolizing Baidu's persistent pursuit of Chinese information retrieval technology.

<script> <br>function highlight(idVal, keyword) { <br>var textbox = document.getElementById(idVal); <br>if (" " == keyword) return; <br>//Get all text content<br>var temp = textbox.innerHTML; <br>console.log(temp); <br>var htmlReg = new RegExp("<.* ?>", "i"); <br>var arr = new Array(); <br><br>//Replace HTML tag <br>for (var i = 0; true; i ) { <br> //Match html tag <br>var tag = htmlReg.exec(temp); <br>if (tag) { <br>arr[i] = tag; <br>} else { <br>break; <br> } <br>temp = temp.replace(tag, "{[(" i ")]}"); <br>} <br><br><br>// Split keywords into arrays<br>words = decodeURIComponent(keyword.replace(/,/g, ' ')).split(/s /); <br><br>//Replace keywords<br>for (w = 0; w < words .length; w ) { <BR>// Match keywords and retain special characters that can appear in keywords <BR>var r = new RegExp("(" words[w].replace(/[(){}. *?^$|\[]]/g, "\$&") ")", "ig"); <BR>temp = temp.replace(r, "<b style='color:Red;' >$1</b>"); <br>} <br><br>//Restore HTML tag<br>for (var i = 0; i < arr.length; i ) { <BR>temp = temp.replace("{[(" i ")]}", arr[i]); <BR>} <BR>textbox.innerHTML = temp; <BR>} <BR>highlight("textbox"," Baidu, Robin Li"); <BR></script>