### Segment iteration

Source: https://github.com/tc39/proposal-intl-segmenter/blob/master/README.md

Demonstrates how to create a locale-specific word segmenter and use it to iterate over segments of a string, logging each segment's details.

```javascript
let segmenter = new Intl.Segmenter("fr", {granularity: "word"});

let input = "Moi?  N'est-ce pas.";
let segments = segmenter.segment(input);

for (let {segment, index, isWordLike} of segments) {
  console.log("segment at code units [%d, %d): «%s»%s",
    index, index + segment.length,
    segment,
    isWordLike ? " (word-like)" : ""
  );
}
// console.log output:
// segment at code units [0, 3): «Moi» (word-like)
// segment at code units [3, 4): «?»
// segment at code units [4, 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): «.»
```

--------------------------------

### Direct random access to segments

Source: https://github.com/tc39/proposal-intl-segmenter/blob/master/README.md

Illustrates direct random access to segments within a string using the `containing` method of the %Segments% instance.

```javascript
// ┃0 1 2 3 4 5┃6┃7┃8┃9
// ┃A l l o n s┃-┃y┃!┃
let input = "Allons-y!";

let segmenter = new Intl.Segmenter("fr", {granularity: "word"});
let segments = segmenter.segment(input);
let current = undefined;

current = segments.containing(0)
// → { index: 0, segment: "Allons", isWordLike: true }

current = segments.containing(5)
// → { index: 0, segment: "Allons", isWordLike: true }

current = segments.containing(6)
// → { index: 6, segment: "-", isWordLike: false }

current = segments.containing(current.index + current.segment.length)
// → { index: 7, segment: "y", isWordLike: true }

current = segments.containing(current.index + current.segment.length)
// → { index: 8, segment: "!", isWordLike: false }

current = segments.containing(current.index + current.segment.length)
// → undefined
```

--------------------------------

### Intl.Segmenter Constructor Signature

Source: https://github.com/tc39/proposal-intl-segmenter/blob/master/spec.html

The signature for the Intl.Segmenter constructor, showing optional locales and options arguments.

```javascript
Intl.Segmenter ( [ _locales_ [ , _options_ ] ] )
```

--------------------------------

### Intl.Segmenter.prototype.segment Method

Source: https://github.com/tc39/proposal-intl-segmenter/blob/master/spec.html

The signature for the segment method on the Intl.Segmenter prototype.

```javascript
Intl.Segmenter.prototype.segment ( _string_ )
```

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