Array.from method
The Array.from method returns
a new array from an
iterable
or an array-like object.
The first parameter of the method is
the object to be used as an array,
the second optional parameter is the
function to be applied to the elements
of the object.
Syntax
let newArray = Array.from(what do we make an array of, [function]);
Example
Let's make a new array from a string:
let res = Array.from('abc');
console.log(res);
The code execution result:
['a', 'b', 'c']
Example
Let's make a new array from a string:
let res = Array.from('abc', function(elem) {
return elem + '!';
});
console.log(res);
The code execution result:
['a!', 'b!', 'c!']
See also
-
the
Array.ofmethod
that obtains an array from parameters -
the
Array.isArraymethod
that checks if an object is an array