javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // string
javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // string
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')
}
}
check data type in javascript
typeof("string"); //string
typeof(123); //number
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'
check data type in js
var x = "Hello World";
typeof x; // "string"
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