JavaScript: Comma Operator
Description
The comma operator (,) is used to execute two expressions sequentially.
Syntax
expr1, expr2
Parameters
expr1: Any expressions.
expr2: Any expressions.
We use the comma operator when we want to include multiple expressions in a location that requires a single expression. This operator is generally used inside a for loop, to allow multiple variables to be updated (increase/decrease) each time through the loop.
For example, we want to display a serial No. (starting from 1) and an employee code ( starting from 10 ), the following code uses the comma operator to increment two variables at once.
for (var i=1, j=10; i <=10; i++, j++)
{
alert('Sl. No. : '+i+' Employee Code : '+j)
}
See also
Conditional Operator
delete
function
in
instanceof
new
this
typeof
void
Previous: JavaScript: Conditional Operator
Next: JavaScript: delete Operator
Test your Programming skills with w3resource's quiz.
It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.
https://www.w3resource.com/javascript/operators/comma.php
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics