javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // stringjavascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // stringcheck data type in js
typeof("string"); //string
typeof(123); //numbercheck data type in js
typeof("iAmAString");//This should return 'string'
//NO camelCase, as it is a JS Keywordjavascript datatypes
dataTypes = {
Numbers = 1,2,3, 100, 3.14
Strings = 'Hello, World' "[email protected]
Boolean = true / false
Null = 'Explicitly set a variable with no Value'
Undefined = 'For variable that have not yet been defined'
Object = 'Complex data structures - Arrays, Dates, Literals etc'
Symbol = 'Used with objects' // usually not needed
}check data type in js
var x = "Hello World";
typeof x; // "string"Copyright © 2021 Codeinu
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