In this post, I will create an example of javascript Regular Expression. And I’ll create the example that thickens the text entered into the TextBox into the DIV.
Output:
JavaScript Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | <!doctype html> <html> <head> <meta charset="utf-8"> <title>Code4Example.com</title> </head> <body> <div id="text">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</div> <label> <input type="text" id="mystring" placeholder="type for checking text" > </label> <button id="find">Check</button> <script> var text=document.querySelector("#text"); var myString=document.querySelector("#mystring"); var find=document.querySelector("#find"); find.onclick=function() { var myRegExp = new RegExp(myString.value, 'gi'); final_str =text.innerHTML.replace(myRegExp, function(str) {return '<strong>'+str+'</strong>'}); text.innerHTML= final_str; } </script> </body> </html> |
Source:
developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
eloquentjavascript.net/09_regexp.html
