JavaScript character count | String length

Use javascript length property to count character in the given string. This way you will get the number of characters in a string.

Example of JavaScript character count

See below example how you can count the char in string using string.length property:-

Output:

JavaScript character count

TextArea character count JavaScript Example

Using jquery you can count characters in a textarea. Like how many char can you type inside a TextArea.

Output:

TextArea character count JavaScript Example

Q: How to count occurrences of each character in string javascript?

For example given string is:-

Find the count of comma , character, which is 3. And the count of individual strings after the split along with a comma, which is 4.

Answer: Use a regular expression 

Output:

count occurrences of each character in string javascript

Q: How to Count the frequency of characters in a string using javascript?

For example: “aabsssd”

Output: a:2, b:1, s:3, d:1

I also want to map the same character as a property name in an object.

Answer: Here is code of it:-

Output: Program output in safari console

Count the frequency of characters in a string javascript

Do comment if you have any doubts and suggestion on this tutorial.

Note: The All JS Examples codes are tested on the Safari browser (Version 12.0.2) and Chrome.
OS: macOS 10.14 Mojave
Code: HTML 5 Version


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