Example of the replace method of a JavaScript string object (for string replacement or regular expression replacement) _ basic knowledge

This article mainly introduces an example of the replace method for JavaScript string objects. The replace method is used for string replacement and supports regular expression replacement. For more information, see JavaScript replace Method

The replace method is used to replace some strings with other strings, or replace strings that match the regular expression match, and return the replaced strings. The syntax is as follows:

The Code is as follows:

Str_object.replace (reg_exp/str, replacement)

Parameter description:

Parameters	Description
Str_object	String (object) to be operated)
Reg_exp/str	Required. Regular Expression to be matched/string to be replaced If reg_exp has a global flag, the replace () method replaces all matched substrings. Otherwise, it only replaces the first matched substring.
Replacement	Required. String to be replaced

String replacement instance

The following example demonstrates the string replacement instance of the replace method:

The Code is as follows: