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How can I troubleshoot my Perl CGI script?

I have a Perl script that isn't working and I don't know how to start narrowing down the problem. What can I do? 8 Answers ...
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Which equals operator (== vs ===) should be used in JavaScript comparisons?

I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.length == 0 inside of an if statement. ...
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Difference between MEAN.js and MEAN.io

... noticed that there are two different stacks with either their own website and installation methods: mean.js and mean.io. So I came up asking myself this question: "Which one do I use?". ...
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Python progression path - From apprentice to guru

I've been learning, working, and playing with Python for a year and a half now. As a biologist slowly making the turn to bio-informatics, this language has been at the very core of all the major contributions I have made in the lab. I more or less fell in love with the way Python permits me to expre...
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Why does this go into an infinite loop?

...ew MutableInt(valueBeforeIncrement); } Right? Increment the value passed and return the original value: that's the definition of the postincrement operator. Now, let's see how this behavior plays out in your example code: MutableInt x = new MutableInt(); x = postIncrement(x); postIncrement(x) ...
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How to increase the gap between text and underlining in CSS

...erline applied, is it possible to increase the distance between the text and the underline? 15 Answers ...
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What is tail call optimization?

... space as (fact 3). This is not the case with the non-tail-recursive fact, and as such large values may cause a stack overflow. share | improve this answer | follow ...
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Convert JavaScript string in dot notation into an object reference

..." It is of course generally fine to do this if your use case is small and you will not run into performance issues, AND you won't need to build upon your abstraction to make it more complicated later. In fact, if this will reduce code complexity and keep things simple, you should probably go ah...
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Fastest way to replace NAs in a large data.table

... data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible. ...
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Select mySQL based only on month and year

... SELECT * FROM projects WHERE YEAR(Date) = 2011 AND MONTH(Date) = 5 share | improve this answer | follow | ...