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JavaScript Array from() Method
The from() method of JavaScript is used to return the Array object from any object with a length property or an iterable object.
The syntax is as follows −
Array.from(obj, mapFunction, val)
Above, the parameter obj is the object to convert to an array, mapFunction is a map function to call, val is a value to use as this when executing the mapFunction.
Let us now implement the from() method in JavaScript −
Example
<!DOCTYPE html>
<html>
<body>
<h2>Demo Heading</h2>
<p id="test"></p>
<script>
var arr1 = Array.from("PQRS");
var arr2 = Array.from("12345");
document.getElementById("test").innerHTML = arr1 +" and "+arr2;
</script>
</body>Output
Example
<!DOCTYPE html>
<html>
<body>
<h2>Demo Heading</h2>
<p id="test"></p>
<script>
var arr1 = Array.from("PQRS");
var arr2 = Array.from("%$%#$$#$");
var arr3 = Array.from("12345");
document.getElementById("test").innerHTML = arr1 +", "+arr2+" and "+arr3;
</script>
</body>Output
Updated on: 17-Dec-2019
91 Views
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