Use this: let oldArray = [1, 2, 3, 4, 5]; let newArray = oldArray.slice(); console.log({newArray});. Basically, the slice() operation clones the array and ... ... <看更多>

Provides additional methods on Array.prototype and TypedArray.prototype to enable changes on the array by returning a new copy of it with the change. ... <看更多>

Array copy. Array copy. function benchmark(Benchmark) { var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9]; return new Benchmark.Suite() .add('Array#slice', ... ... <看更多>

First, convert an array of duplicates to a Set . The new Set will implicitly remove duplicate elements. Then, convert the set back to an array. ... <看更多>

What you're doing there is copying the array, not its contents. I.e. it's a shallow copy. As mherzig mentions in a comment, what you end up ... ... <看更多>