TypeScript | Array join() Method
Last Updated :
18 Jun, 2020
The Array.join() is an inbuilt TypeScript function which is used to joins all the elements of an array into a string.
Syntax:
array.join(separator)
Parameter: This method accept a single parameter as mentioned above and described below:
- separator : This parameter is the a string to separate each element of the array.
Return Value: This method returns the string after joining all the array elements.
Below examples illustrate the Array join() method in TypeScript.
Example 1:
JavaScript
<script>
var arr = [ 11, 89, 23, 7, 98 ];
var str = arr.join( ", " )
console.log( "String : " + str);
</script>
|
Output:
String : 11, 89, 23, 7, 98
Example 2:
JavaScript
<script>
var arr = [ 'a' , 'b' , 'c' , 'a' , 'e' ];
var val = arr.join( " " )
var val1 = arr.join( " + " )
console.log(val);
console.log(val1);
</script>
|
Output:
a b c a e
a + b + c + a + e
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