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22 lines
586 B
TypeScript
22 lines
586 B
TypeScript
// Loaded from https://deno.land/x/segno@v1.1.0/lib/validations/isLength.ts
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// @ts-ignore allowing typedoc to build
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import { assertString } from '../helpers/assertString.ts';
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type LengthOptions = {
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min?: number;
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max?: number;
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};
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export const isLength = (str: string, options?: LengthOptions) => {
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assertString(str);
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const min = options?.min || 0;
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const max = options?.max;
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const surrogatePairs = str.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g) || [];
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const len = str.length - surrogatePairs.length;
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return len >= min && (typeof max === 'undefined' || len <= max);
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};
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