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What is the difference between substr and substring?
...string(-3); // "string"
"string".substr(-3); // "ing" (read from end of string)
"string".slice(-3); // "ing"
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Omitting the second expression when using the if-else shorthand
...courage this simpler approach:
if(x==2) dosomething();
You should write readable code at all times; if you are worried about file size, just create a minified version of it with help of one of the many JS compressors. (e.g Google's Closure Compiler)
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gitignore without binary files
...o .gitignore, because that would truncate the file before cat opens it for reading. Also, you might want to add \! -regex '.*/.*/.*' as an option to find if you do not want to include executable files in subdirectories.
shar...
Measure and Benchmark Time for Ruby Methods
...NOTONIC)
diff = finish - start # gets time is seconds as a float
You can read more details here. Also you can see popular Ruby project, Sidekiq, made the switch to monotonic clock.
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How to get client's IP address using JavaScript?
...longer work because browsers are fixing webrtc leak: for more info on that read this other question: RTCIceCandidate no longer returning IP
Update: I always wanted to make a min/ uglified version of the code, so here is an ES6 Promise code:
var findIP = new Promise(r=>{var w=window,a=ne...
When to use Storyboard and when to use XIBs
... all depends on the project morphology (prototype?,large scale project?, already designed?, etc...) Here are my thoughts polarios.co/2014/08/04/storyboard-xibs-co
– Ganzolo
Nov 6 '14 at 14:33
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How to specify HTTP error code?
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For anyone reading this in 2016: As per Express 4.x, res.send(404) is deprecated. It's now res.sendStatus(404). expressjs.com/en/api.html#res.sendStatus
– 0xRm
Jun 28 '16 at 6:35
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Python str vs unicode types
...derstand what the difference is between Unicode and an encoding. Please do read the following articles before you continue:
The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) by Joel Spolsky
The Python Unicode HOWTO
Pragmat...
How can I create a simple message box in Python?
... Note: My popup was not in English, and can be corrected by reading user Burhan Khalid's answer
– Ari
Sep 14 '17 at 6:29
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Convert Decimal to Double
...ds clarity to the code and aids your fellow programmers who may eventually read it.
In addition to (or instead of) appending a .0 to the number, you can use decimal.ToDouble().
Here are some examples:
// Example 1
double transperancy = trackBar1.Value/5000;
this.Opacity = decimal.ToDouble(trans...