+=
addition assignment operatorjavascript +=
Addition assignment (+=) The operator ( += )
adds the value of the right operand to a variablewhat 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) // 2Copyright © 2021 Codeinu
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