type 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
}javascript check type of variable var
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"Copyright © 2021 Codeinu
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