javascript type of variable code example
Example 1: javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo);
Example 2: get type of var js
function doSomething(x) {
if(typeof(x) === 'string') {
alert('x is a string')
} else if(typeof(x) === 'number') {
alert('x is a number')
}
}
Example 3: type of variable js
var number = 1
var string = 'hello world'
var dict = {a: 1, b: 2, c: 3}
console.log(typeof number)
console.log(typeof string)
console.log(typeof dict)
Example 4: javascript find type of variable
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
if(typeof bar === 'number') {
}
Example 5: js typeof number
console.log(typeof 93);
console.log(typeof 'Maximum');
console.log(typeof false);
console.log(typeof anUndeclaredVariable);
Example 6: type javascirpt
console.log(typeof 42);