JavaScript/Reserved words/typeof
< JavaScript | Reserved words
(Redirected from JavaScript/Reserved Words/typeof)The typeof keyword[edit | edit source]
The typeof keyword is a unary operator that returns a string giving the type of the parametre.
Syntax[edit | edit source]
typeof[(]expression[)];
The operator returns six values, which are boolean, function, number, object, string, and undefined.
Examples[edit | edit source]
theArray = new Array();
if (typeof(theArray) == 'object') {
[…]
}