how to check datatype in js code example

Example 1: check data type in javascript

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

Example 2: type javascirpt

console.log(typeof 42);

Example 3: check data type in js

typeof("iAmAString");//This should return 'string'
//NO camelCase, as it is a JS Keyword

Example 4: check data type in js

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

Example 5: javascript check type of variable var

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