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23 lines
732 B
TypeScript
23 lines
732 B
TypeScript
/**
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* Get the strength of a password
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* @param password The password to check
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* @returns Number from 0 to Infinity representing the strength of the password
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*/
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export const passwordStrength = (password: string): number => {
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const length = password.length;
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const specialChars = password.match(/[^A-Za-z0-9]/g)?.length || 0;
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const numbers = password.match(/[0-9]/g)?.length || 0;
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const upperCase = password.match(/[A-Z]/g)?.length || 0;
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const lowerCase = password.match(/[a-z]/g)?.length || 0;
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// Calculate the strength of the password
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return (
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(length * 4 +
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specialChars * 6 +
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numbers * 4 +
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upperCase * 2 +
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lowerCase * 2) /
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16
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);
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};
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