how to find type of data in javascript code example
Example 1: javascript find type of variable
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
if(typeof bar === 'number') {
}
Example 2: check data type in javascript
typeof("string");
typeof(123);
Example 3: javascript check type of variable var
typeof "hello"
var a = 1;
typeof(a);
Example 4: javascript all type of data
let a = ["A", 1, true, [], [2, 'x'],{},{a:'B'}, NaN, undefined, null];
let s = a.toString();
console.log(s);