22 lines
596 B
TypeScript
22 lines
596 B
TypeScript
import { LenConstraint } from "../api/ServerApi";
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/**
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* Check if a constraint was respected or not
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*
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* @returns An error message appropriate for the constraint
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* violation, if any, or undefined otherwise
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*/
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export function checkConstraint(
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constraint: LenConstraint,
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value: string | undefined
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): string | undefined {
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value = value ?? "";
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if (value.length < constraint.min)
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return `Veuillez indiquer au moins ${constraint.min} caractères !`;
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if (value.length > constraint.max)
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return `Veuillez indiquer au maximum ${constraint.min} caractères !`;
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return undefined;
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}
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