+= is the concatenation equals operator. Often used to append and assign strings;
var s="Hello";
s += ' World';
console.log(s); // Hello World
1
solved Meaning of += sign [closed]
+= is the concatenation equals operator. Often used to append and assign strings;
var s="Hello";
s += ' World';
console.log(s); // Hello World
1
solved Meaning of += sign [closed]