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JavaScript - replace first 2 characters in string

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Created by:
christa
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In this article, we would like to show you how to replace the first 2 characters in a string in JavaScript.

Quick solution

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or:

 

1. Using string slice() with + operator

Edit

In this example, we use string slice() method to remove the first 2 characters of the text string. Then with + operator we add the remainder of the text to the replacer.

Runnable example:

Note:

The replacer for the two removed characters may cosist of any number of characters, not only 2.

2. Using string slice() with concat() method

Edit

In this example, we use string slice() method to remove the first 2 characters of the text string. Then with concat() method we add the remainder of the text to the replacer.

Runnable example:

Note:

The replacer for the two removed characters may cosist of any number of characters, not only 2.

3. Using string replace() with regex

Edit

In this example, we use string replace() with /^.{2}/g regex to replace the first 2 characters in the text string.

Regex explanation:

  • ^ - matches the beginning of the string,
  • . - matches any character except linebreaks,
  • {2} - matches the specified quantity of the previous token (in our case the .).

Runnable example:

References

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Alternative titles

  1. JavaScript - replace first two characters in string
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JavaScript - replace first 2 characters in string
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