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18 lines
487 B
TypeScript
18 lines
487 B
TypeScript
// Loaded from https://deno.land/x/validasaur/src/rules/starts_with.ts
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import type { Validity, Rule } from "../types.ts";
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import { invalid } from "../utils.ts";
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export function startsWith(str: string): Rule {
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return function startsWithRule(value: any): Validity {
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if (typeof value !== "string") {
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return invalid("startsWith", { value, str }, false);
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}
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if (value.startsWith(str) === false) {
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return invalid("startsWith", { value, str }, false);
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}
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};
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}
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