Answers for "check type of javascript"

javascript how to know type of variable

var foo = "Hello";
console.log(typeof foo); // string

check type javascript

console.log(typeof "how are you?")
"string"
console.log(typeof false) / console.log(typeof true)
"boolean"
console.log(typeof 100)
"number"

javascript find type of variable

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

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

javascript type checking

var trueTypeOf = function (obj) {
	return Object.prototype.toString.call(obj).slice(8, -1).toLowerCase();
};

// Returns "array"
trueTypeOf([]);

// Returns "date"
trueTypeOf(new Date());