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tricks

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/** * isJSON * Determines whether the input string is a valid JSON string * @param {string} str - String to parse * @returns {boolean} Is JSON string or not * * @example <caption>isJSON</caption> * isJSON(null) * // false * isJSON('{"name": "John", "age": 30}') * // true * isJSON('{"name": "John", "age": 30,}') * // false */ export default function strIsJSON(str) { if (typeof str !== 'string') { return false; } try { JSON.parse(str); return true; } catch { return false; } }