JavaScript (ES2026) reference · String Methods

JavaScript String at() Method

Return the character at an index, where negative indexes count from the end: str.at(-1) is the last character.

JavaScript (ES2026) Since ES2022

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Syntax

string.at(index)

Parameter	Description
`index`	Position; negative values count back from the end.

A one-character string, or undefined if the index is out of range.

Positive and negative indexesTry it yourself

const word = "camel";
console.log(word.at(0), word.at(-1), word.at(10));

Output

c l undefined

The last characterTry it yourself

const file = "report.pdf";
console.log(file[file.length - 1]); // the old way
console.log(file.at(-1));          // the same, shorter

Output

f
f

Version	Change
JavaScript ES2022	Added

string.charAt() · Return the character at a given index as a new string, or an empty string if the index is out of range.
string.slice() · Extract part of a string between two indexes; negative indexes count from the end.
array.at() · Return the element at an index, where negative indexes count from the end: arr.at(-1) is the last element.
JavaScript Strings · tutorial
JavaScript String Methods · tutorial