isBoolean.js « lib « es « validator « node_modules « src - langdetect - LangDetect - An AI program to detect the language from a text

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path: root/src/node_modules/validator/es/lib/isBoolean.js

blob: d50092f24b30683bdc21cd7767d30e70ec3daa4d (plain)

import assertString from './util/assertString';
export default function isBoolean(str) {
  assertString(str);
  return ['true', 'false', '1', '0'].indexOf(str) >= 0;
}