javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // stringjavascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // stringget 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 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
}check data type in javascript
typeof("string"); //string
typeof(123); //numbertype of 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
}Copyright © 2021 Codeinu
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