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JavaScript String charCodeAt() Method

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JavaScript String charCodeAt() Method

The charCodeAt() method returns an integer between 0 and 65535 representing the UTF-16 code unit at the given index.

Example

HTML Online Editor
<!DOCTYPE html> <html> <body> <script> var str = "Hello there"; var myCharCode = str.charCodeAt(1); document.write("myCharCode = " +myCharCode); </script> </body> </html>

Syntax

str.charCodeAt(index)

Parameter Values

ValueTypeExplanation
index optional Specifies the index of the character you want to return a number representing the UTF-16 code unit value.
If no index is provided, the default is '0'.

Return Values

ValueExplanation
Number Returns a number representing the UTF-16 code unit value of the character at the given index.
NaN If index is out of range.

Browser Support

Devicedesktopmobileserver
Browser / PLgoogle chromesafarifirefoxinternet Exploreredgeoperagoogle chromesafarifirefoxedgeoperaandroid webviewsamsung internetnodejs
charCodeAt()YesYesYesYesYesYesYesYesYesYesYesYesYes

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