javascript find type of variable
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
if(typeof bar === 'number') {
//whatever
}javascript find type of variable
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
if(typeof bar === 'number') {
//whatever
}check data type in javascript
typeof("string"); //string
typeof(123); //numberhow to use typeof in javascript
//typeof() will return the type of value in its parameters.
//some examples of types: undefined, NaN, number, string, object, array
//example of a practical usage
if (typeof(value) !== "undefined") {//also, make sure that the type name is a string
//execute code
}js typeof number
console.log(typeof 93);
// Output = "number"
console.log(typeof 'Maximum');
// Output = 'string'
console.log(typeof false);
// Output = "boolean"
console.log(typeof anUndeclaredVariable);
// Output = "undefined"check data type in js
typeof("iAmAString");//This should return 'string'
//NO camelCase, as it is a JS Keywordtypeof javascript
var miFuncion = new Function("5+2")
var forma = "redonda"
var tamano = 1
var hoy = new Date()
typeof miFuncion === 'function'
typeof forma === 'string'
typeof tamano === 'number'
typeof hoy === 'object'
typeof noExiste === 'undefined'Copyright © 2021 Codeinu
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