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Is null reference possible?

Is this piece of code valid (and defined behavior)? 4 Answers 4 ...
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NodeJS: How to get the server's port?

You often see example hello world code for Node that creates an Http Server, starts listening on a port, then followed by something along the lines of: ...
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Python strftime - date without leading 0?

When using Python strftime , is there a way to remove the first 0 of the date if it's before the 10th, ie. so 01 is 1 ? Can't find a % thingy for that? ...
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What's the best way to set a single pixel in an HTML5 canvas?

The HTML5 Canvas has no method for explicitly setting a single pixel. 14 Answers 14 ...
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MySQL Conditional Insert

I am having a difficult time forming a conditional INSERT 13 Answers 13 ...
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Using NSPredicate to filter an NSArray based on NSDictionary keys

I have an array of dictionaries. 6 Answers 6 ...
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Minimum and maximum date

I was wondering which is the minimum and the maximum date allowed for a Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it. ...
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.trim() in JavaScript not working in IE

I tried to apply .trim() to a string in one of my JavaScript programs. It's working fine under Mozilla, but an error displays when I try it in IE8. Does anyone know what is going on here? Is there anyway I can make it work in IE? ...
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How should one use std::optional?

I'm reading the documentation of std::experimental::optional and I have a good idea about what it does, but I don't understand when I should use it or how I should use it. The site doesn't contain any examples as of yet which leaves it harder for me to grasp the true concept of this object. When...
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Pipe output and capture exit status in Bash

I want to execute a long running command in Bash, and both capture its exit status, and tee its output. 15 Answers ...