JavaScript string.replace() Method
Below is the example of the string.replace() Method.
- Example:
javascript
<script> var string = 'GeeksForGeeks' ; var newstring = string.replace(/GeeksForGeeks/, 'GfG' ); document.write(newstring); </script> |
- Output:
GfG
The string.replace() is an inbuilt method in JavaScript which is used to replace a part of the given string with some another string or a regular expression. The original string will remain unchanged.
Syntax:
str.replace(A, B)
Parameters: Here the parameter A is regular expression and B is a string which will replace the content of the given string.
Return Values: It returns a new string with replaced items.
JavaScript code to show the working of this method:
Code #1:
Here the contents of the string GeeksForGeeks will be replaced with gfg.
javascript
<script> // Assigning a string var string = 'GeeksForGeeks is a CS portal' ; // Calling replace() method var newstring = string.replace(/GeeksForGeeks/, 'gfg' ); // Printing replaced string document.write(newstring); </script> |
Output:
gfg is a CS portal
Code #2:
javascript
<script> // Taking a regular expression var re = /GeeksForGeeks/; // Taking a string as input var string = 'GeeksForGeeks is a CS portal' ; // Calling replace() method to replace // GeeksForGeeks from string with gfg var newstring = string.replace(re, 'gfg' ); // Printing new string with replaced items document.write(newstring); </script> |
Output:
gfg is a CS portal
Supported Browsers:
- Google Chrome 1 and above
- Edge 12 and above
- Firefox 1 and above
- Internet Explorer 5.5 and above
- Opera 4 and above
- Safari 1 and above