27 lines
882 B
TypeScript
27 lines
882 B
TypeScript
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import { RichTextValue } from "./types";
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/**
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* Slice a Rich Text value from `startIndex` to `endIndex`. Indices are
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* retrieved from the selection if none are provided. This is similar to
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* `String.prototype.slice`.
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*
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* @param {RichTextValue} value Value to modify.
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* @param {number} [startIndex] Start index.
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* @param {number} [endIndex] End index.
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*
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* @return {RichTextValue} A new extracted value.
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*/
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export function slice( value: RichTextValue, startIndex: number = value.start || 0, endIndex: number = value.end || 0 ): RichTextValue {
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const { formats, replacements, text } = value;
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if ( startIndex === undefined || endIndex === undefined ) {
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return { ...value };
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}
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return {
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formats: formats.slice( startIndex, endIndex ),
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replacements: replacements.slice( startIndex, endIndex ),
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text: text.slice( startIndex, endIndex ),
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};
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}
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