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/**

* What is the most efficient way to test if an object has a key

*/

const Benchmark = require('./');

Benchmark.setup(() => ({

obj: {

a: 'lorem',

b: 'ipsum',

c: 'dolor',

d: 'sit',

e: 'amet',

}

}))

Benchmark.add('has own property', ({ obj }) => {

if (obj.hasOwnProperty('test')) {

return true;

}

})

Benchmark.add('in', ({ obj }) => {

if ('test' in obj) {

return true;

}

});

// winner

Benchmark.add('undefined check', ({ obj }) => {

if (obj.test !== undefined) {

return true;

}

})

Benchmark.run();