Array. From, a new method for converting JavaScript arrays

In the past, we used a variety of methods to convert things like Array objects (such as arguments and NodeList) into real values. For example:

Convert NodeList to an array

Basically, we can use methods like Array. prototype. slice. call () to convert arguments and NodeList into the desired form.

Now, we have a more direct method to directly convert the objects of these classes into real objects.

Convert NodeList to Array

Var divs = Array. from (document. querySelectorAll ('div '));

// Array [1, 232] (every DIV on the page)

Convert arguments to Array

Function something (){
Var args = Array. from (arguments );

// Array ['Yes', 1, {}]
}
Something ('yes', 1 ,{});

Convert String to Array

Array. from ('javascript '); // similar to 'javascript'. split ('')

// ["J", "a", "v", "a", "S", "c", "r", "I", "p ", "t"]

These statements are simple and clear, and you do not need to use slice or other indirect methods!