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16 lines
425 B
JavaScript
16 lines
425 B
JavaScript
function allKeys(obj) {
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if (!isObject(obj)) return [];
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var keys = [];
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for (var key in obj) keys.push(key);
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return keys;
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}
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function isObject(obj)
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{
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var type = typeof obj;
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return type === 'function' || type === 'object' && !!obj;
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}
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function Student(name) {
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this.name = name;
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}
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Student.prototype.rollno = true;
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console.log(allKeys(new Student("Sara")));
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