As mentioned before, Perl programming brought on a major shift in programming and heralded an evolution from statically typed to dynamically typed languages. One of the other shifts it ushered in was the way references are used. Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours. Toptal offers a no-compromise solution to businesses undergoing rapid development and scale.
- Perl provides very concise and powerful functions to do this retrieval; functions with which experienced Perl developers must be familiar.
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Certify match!
If you are looking to hire Perl developers, it’s probably because you have a legacy Perl application or you’re looking to take advantage of the power of its regular expressions engine. This hiring guide covers the basic, key aspects that every Perl programmer should know inside and out. As a leading remote IT recruitment agency, we care that our clients participate throughout the hiring process. Because for us, hiring a qualified candidate is not only about the skills and abilities, but it’s also about how candidates match with your company’s culture.
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Q: Given an array, how would you get an array of just the unique elements?
These questions are designed to test just how comfortable the candidate is with common Perl functions. Qualified candidates should have an understanding of common functions like map and grep. If the candidate solves the question using one function, ask them to solve it using the other function. The if statement contains a regular expression which is implicitly checking against the $_ special variable, and the while loop sets $_ to each line as it loops through. In Perl, the $_ can usually be inferred and this is one such case. Just as with an array, the elements of a hash are defined with parentheses, but since the variable is a hash, it’s prefixed with a %.
Our goal is to empower coders from the world’s most exciting markets, so they can partner with US and Canadian visionaries to create groundbreaking products for the online world. Perl converts arrays to hashes by taking the first element as the key and second element as the value, then the third as the key and fourth as the value and so on. The function split takes the input string and splits it into an array wherever the match occurs (in this case either an equal sign or ampersand).
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