JAVASCRIPT

how to check data type of javascript variable

let counter = 120; // counter is a number
console.log(typeof(counter)); // "number"

counter = false;   // counter is now a boolean
console.log(typeof(counter)); // "boolean"

counter = "Hi";   // counter is now a string
console.log(typeof(counter)); // "string"Code language: JavaScript (javascript)

check data type in js

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

javascript check type of variable var

// You can use the built-in method 'typeof' in order to check the variable datatype

//examples:

typeof "hello" // "string"

//or
var a = 1;
typeof(a);
//the output will be > 'number'

check type of variable in javascript

let store = [1,2,3]; console.log(typeof store);

check data type in js

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

js check data type

typeof(variable)

javascript check type of variable var

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

check data type in js

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

check the type of a variable in js

if(typeof variable == 'object'){
  //
}