Answers for "tell data type js"

javascript find type of variable

> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"

if(typeof bar === 'number') {
   //whatever
}

check data type in js

typeof("string"); //string
typeof(123); //number

check data type in js

var x = "Hello World";
typeof x; // "string"