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JavaScript Map entries() Method

JavaScript Map entries() Method with example, javascript map methods, abs() method, round() method, ceil() method, floor() method, pow() method, random() method, sqrt() method, max() method, min() method, log() method, sin() method, cos() method, tan() method etc.

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JavaScript Map entries() method

The JavaScript map entries() method returns an object of new map iterator. This object contains the key-value pair for each element. It maintains insertion order.

Syntax

The entries() method is represented by the following syntax:

mapObj.entries()

Return Value

A new object of map iterator.

JavaScript Map entries() method example

Here, we will understand entries() method through various examples.

Example 1

Let's see a simple example of entries() method.

<script>
var map=new Map();
map.set(1,"jQuery");
map.set(2,"AngularJS");
map.set(3,"Bootstrap");

var itr=map.entries();
document.writeln(itr.next().value+"<br>");
document.writeln(itr.next().value+"<br>");
document.writeln(itr.next().value);
  </script>
Test it Now

Output:

1,jQuery
2,AngularJS
3,Bootstrap

Example 2

Let's see the same example using for loop.

<script>
var map=new Map();
map.set(1,"jQuery");
map.set(2,"AngularJS");
map.set(3,"Bootstrap");
var itr=map.entries();
for(i=0;i<map.size;i++)
  {
document.writeln(itr.next().value+"<br>");
  }
  </script>
Test it Now

Output:

1,jQuery
2,AngularJS
3,Bootstrap

Next TopicJavaScript Math




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