Toptal

Toptal started the JavaScript coding challenge web app as a way to attract people to our conference booths. Seeing how successful it was, we decided to make a pilot on the web, open for everyone in our community and their networks.

At launch time, we had encouraged motivated developers to come up with creative ways to score high on the overall JavaScript coding challenge. Some of the key success factors of great independent freelancers are the ability to think outside the box and find creative ways to work within a set of constraints.

JavaScript Coding Challenge Questions

The gauntlet consisted of a number of JavaScript questions—akin to those that might be used as interview questions—ranging from really basic JavaScript challenge questions such as the one pictured above:

box.double = function double (x) { //return x doubled };

…to more intermediate ones:

box.dateRank = function dateRank

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