Intl.Segmenter.prototype.segment()

Baseline 2024
Newly available

Since April 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The segment() method of Intl.Segmenter instances segments a string according to the locale and granularity of this Intl.Segmenter object.

Try it

Syntax

js
segment(input)

Parameters

input

The text to be segmented as a string.

Return value

A new iterable Segments object containing the segments of the input string, using the segmenter's locale and granularity.

Examples

js
// Create a locale-specific word segmenter
const segmenter = new Intl.Segmenter("fr", { granularity: "word" });

// Use it to get an iterator over the segments of a string
const input = "Moi ? N'est-ce pas ?";
const segments = segmenter.segment(input);

// Use that for segmentation
for (const { segment, index, isWordLike } of segments) {
  console.log(
    "segment at code units [%d, %d]: «%s»%s",
    index,
    index + segment.length,
    segment,
    isWordLike ? " (word-like)" : "",
  );
}
// segment at code units [0, 3]: «Moi» (word-like)
// segment at code units [3, 4]: « »
// segment at code units [4, 5]: «?»
// segment at code units [5, 6]: « »
// segment at code units [6, 11]: «N'est» (word-like)
// segment at code units [11, 12]: «-»
// segment at code units [12, 14]: «ce» (word-like)
// segment at code units [14, 15]: « »
// segment at code units [15, 18]: «pas» (word-like)
// segment at code units [18, 19]: « »
// segment at code units [19, 20]: «?»

Specifications

Specification
ECMAScript® 2025 Internationalization API Specification
# sec-intl.segmenter.prototype.segment

Browser compatibility

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