liuxd · December 4, 2018 21:38
diff --git a/sample.js b/sample.js
 // for array

 let arr1 = ['a', 'b'], arr2 = ['c'];
 console.log(arr1.concat(arr2)); // ['a', 'b', 'c']

 // for object

 let obj1 = {'a': 1, 'b': 2}, obj2= {'c': 3, 'a': 4}
 console.log(Object.assign(obj1, obj2)) // {a: 4, b: 2, c: 3}
	// for array

	let arr1 = ['a', 'b'], arr2 = ['c'];
	console.log(arr1.concat(arr2)); // ['a', 'b', 'c']

	// for object

	let obj1 = {'a': 1, 'b': 2}, obj2= {'c': 3, 'a': 4}
	console.log(Object.assign(obj1, obj2)) // {a: 4, b: 2, c: 3}
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