JavaScript string.replace() Method
Below is the example of the string.replace() Method.
- Example:
<script>varstring ='GeeksForGeeks';varnewstring = 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.
Code #1:
Here the contents of the string GeeksForGeeks will be replaced with gfg.
<script> // Assigning a string var string = 'GeeksForGeeks is a CS portal'; // Calling replace() methodvar newstring = string.replace(/GeeksForGeeks/, 'gfg'); // Printing replaced stringdocument.write(newstring); </script> |
Output:
gfg is a CS portal
Code #2:
<script> // Taking a regular expression var re = /GeeksForGeeks/; // Taking a string as inputvar string = 'GeeksForGeeks is a CS portal'; // Calling replace() method to replace// GeeksForGeeks from string with gfgvar newstring = string.replace(re, 'gfg'); // Printing new string with replaced itemsdocument.write(newstring); </script> |
Output:
gfg is a CS portal
Supported Browsers:
- Google Chrome
- Internet Explorer
- Firefox
- Apple Safari
- Opera
