Merge Array

How to combine two sorted arrays into one? We can do this easily with the spread operator.

a1 = [1, 2, 5, 6, 9];
a2 = [3, 4, 7, 8, 10];

res = [...a1, ...a2]; // [1, 2, 5, 6, 9, 3, 4, 7, 8, 10]

But if we want to combine and sort? Again, nothing complicated!

res = [...a1, ...a2].sort((a, b) => +a > +b); // [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Có thể bạn đã miss một số snippets code

Merge Array

How to combine two sorted arrays into one? We can do this easily with the spread operator.

Rest Operator for Objects

Now we can use rest on the properties of an Object. It allows us to explicitly extract certain named variables, and assign any uncalled variables into a catchall Object.

How to reverse an Array?

Reversing an array in JS is really simple with the standard array method. Like below

Await in a for loop

How to Await in a for loop

Convert Array-like to True Array