JavaScript | RegExp toString() Method
The RegExp toString() Method in JavaScript is used to return the string value of the regular expression.
Syntax:
RegExpObject.toString()
Example 1: This example returns the string value of the regular expression.
html
<!DOCTYPE html><html><head> <title> JavaScript RegExp toString Method </title></head><body style="text-align:center"> <h1 style="color:green">GeeksforGeeks</h1> <h2>RegExp toString() Method</h2> <p>Input: RegExp([a-c]", "gi")</p> <button onclick="geek()">Click it!</button> <p id="app"></p> <script> function geek() { var regex = new RegExp("[a-c]", "gi"); var rex = regex.toString(); document.getElementById("app").innerHTML = "String Value: " + "<b>" + rex + "</b>"; } </script></body></html> |
Output:
Before clicking the button:
After clicking the button:
Example 2: This example returns the string value of the regular expression.
html
<!DOCTYPE html><html><head> <title> JavaScript RegExp toString Method </title></head><body style="text-align:center"> <h1 style="color:green">GeeksforGeeks</h1> <h2>RegExp toString() Method</h2> <p>Regular Expression: /[a-k]/g</p> <button onclick="geek()">Click it!</button> <p id="app"></p> <script> function geek() { var regex = /[a-k]/g; var rex = regex.toString(); document.getElementById("app").innerHTML = "String Value: " + "<b>" + rex + "</b>"; } </script></body></html> |
Output:
Before clicking the button:
After clicking the button:
Supported Browsers: The browsers supported by RegExp toString() Method are listed below:
- Google Chrome 1 and above
- Edge 12 and above
- Firefox 1 and above
- Internet Explorer 4 and above
- Opera 5 and above
- Safari 1 and above
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