Answers for "+= in javascript"

addition assignment operator

Posted by: Guest on November-03-2020

javascript +=

Addition assignment (+=) The operator ( += ) 
adds the value of the right operand to a variable

Posted by: Guest on June-24-2021

-1

=== in js

<!DOCTYPE html>
<html>
<body>

<p id="demo"></p>

<script>

  var x = abc;
  document.getElementById("demo").innerHTML = (x === "ABC");

</script>

</body>
</html>

Posted by: Guest on August-12-2020

Source

what does -= mean in JavaScript

/* JavaScript shorthand -=
-= is shorthand to subtract something from a
variable and store the result as that same variable.
*/

// The standard syntax:
var myVar = 5; 
console.log(myVar) // 5
var myVar = myVar - 3;
console.log(myVar) // 2

// The shorthand:
var myVar = 5;
console.log(myVar) // 5
var myVar -= 3;
console.log(myVar) // 2

Posted by: Guest on February-18-2020