deno.land / x / masx200_leetcode_test@10.6.5 / parsing-a-boolean-expression / index.ts
12345678910111213141516171819202122232425262728293031323334353637383940414243export default function parseBoolExpr(expression: string): boolean { return new Function( "t", "f", "not", "and", "or", "return " + expression.replace(/(\!|\&|\|)/g, (a) => { const value = translator.get(a); return value ?? a; }), )(true, false, not, and, or);}const translator = new Map<string, string>([ ["!", "not"], ["&", "and"], ["|", "or"],]);function not(a: boolean) { return !a;}function and(...a: boolean[]) { let ans = a[0]; for (const value of a) { if (!value) { return false; } ans = ans && value; } return ans;}function or(...a: boolean[]) { let ans = a[0]; for (const value of a) { if (value) { return true; } ans = ans || value; } return ans;}
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