Answers for "check if variable is of type javascript"

9

javascript check if variable is object

let myObject = {
	firstname: 'harry',
  	lastname: 'potter'
}
//check the typeof if, boolean, object, string etc...
console.log(typeof myObject);
if(typeof myObject === 'object') {
	console.log('this is object');
}
Posted by: Guest on May-09-2020
2

javascript check if object

typeof yourVariable === 'object' // true if it's an object or if it's NULL.

// if you want to exclude NULL
typeof yourVariable === 'object' && yourVariable !== null
Posted by: Guest on January-11-2021
1

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'
Posted by: Guest on August-23-2020
0

javascript check type of variable var

> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
Posted by: Guest on August-23-2020

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