JavaScript String codePointAt() Method

JavaScript string codePointAt() is an inbuilt method in JavaScript that is used to return a non-negative integer value i.e, the method returns the Unicode value at an index (position) in a string.

Syntax:

string.codePointAt(A)

Parameters:

• It accepts a parameter that shows the index of an element in the string. The index starts from zero (0). 

Return Values:

• It returns the code point value of the element which is denoted by a parameter in the string. It returns undefined if there is no element present at the specified location i.e, at "A"th index.

Example: This example shows the basic use of the string.codePointAt() Method in javascript.

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Example 2: The output of the example comes out to be undefined as the third index does not exist.

undefined

Example 3: The example iterates over each character in the string "GeeksforGeeks" and prints the Unicode code point value for each character.

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Example 4: In this example, the codePointAt() method is used to get the Unicode code point value of a supplementary character (in this case, the star emoji "????").

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We have a complete list of Javascript string methods, to check those please go through this article.

Supported Browsers:

• Google Chrome 41
• Edge 12
• Firefox 29
• Opera 28
• Safari 10