Destructuring

// ES5 var parts = '2010-11-11'.split('-'), year = parts[0], month = parts[1], day = parts[2]; // ES6 var [year, month, day] = '2010-10-11'.split('-'); console.log(year); // 2010 console.log(month); // 10 console.log(day); // 11 // Only take the month and day var [, month, day] = '2010-10-11'.split('-'); console.log(month); // 10 console.log(day); // 11 // Only take the year and day var [year, , day] = '2010-10-11'.split('-'); console.log(year); // 2010 console.log(day); // 11 // Set default values // Assume that date is going to be optional and if it is not found, we would like to use `1` then var [year, month, date=1] = '2010-10'.split('-'); console.log(year); // 2010 console.log(month); // 10 console.log(date); // 1 var [year, month, date=1] = '2010-10-11'.split('-'); console.log(year); // 2010 console.log(month); // 10 console.log(date); // 11 // With object var person = { name: 'John Doe', age: 23, gender: 'male' }; var {name, age, gender} = person; console.log(name); // John Doe console.log(age); // 23 console.log(gender); // male // Aliasing var person = { name: 'John Doe', age: 23, gender: 'male' }; var {name:tag, age, gender:sex} = person; console.log(tag); // John Doe console.log(age); // 23 console.log(sex); // male // Set default values on object var person = { name: 'John Doe', age: 23}; var {name, age, gender = 'male'} = person; console.log(name); // John Doe console.log(age); // 23 console.log(gender); // male // Alias and default value at the same time var person = { name: 'John Doe', age: 23}; var {name, age, gender:sex = 'male'} = person; console.log(name); // John Doe console.log(age); // 23 console.log(sex); // male // Example // Returning object/multiple values from a function call function getLocation() { return { latitude: 23.4125, longitude: 45.128 }; } var {latitude:lat, longitude:long} = getLocation(); console.log(lat); //23.4125 console.log(long); //45.128