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JavaScript JavaScript Foundations Functions Return Values

Posted by Serafeim Oikonomou
Serafeim Oikonomou
6,028 Points

Challenge problem

Hello!

The challenge is:

Around line 17, create a function named 'arrayCounter' that takes in a parameter which is an array. The function must return the length of an array passed in or 0 if a 'string', 'number' or 'undefined' value is passed in.

My code:

function arrayCounter(myarray){
    if (typeof myarray==="undefined") || (typeof myarray==="string") || (typeof myarray==="number") {
        return 0;
    } else {
        return myarray.length;
    }
}

I get "SyntaxError: Parse error" Any suggestions??

3 Answers

Johnny Chau
Johnny Chau
2,616 Points
Johnny Chau
Johnny Chau
2,616 Points

try wrapping all 3 "if" conditions in a pair of parentheses like: if ((typeof myarray==="undefined") || (typeof myarray==="string") || (typeof myarray==="number"))

Joakim Bergman
Joakim Bergman
14,501 Points
Joakim Bergman
Joakim Bergman
14,501 Points

There should be another set of parentheses around all of the conditions like this if ( ( typeof myarray === "undefined ) || ( typeof myarray === "string" ) || ( typeof myarray === "number" ) )

Serafeim Oikonomou
Serafeim Oikonomou
6,028 Points
Serafeim Oikonomou
Serafeim Oikonomou
6,028 Points

I already did it. Thank very much for your replies though :-)