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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
...essing a value in a dictionary by its key is cheap, because it's a fast, O(1) operation.
BTW: The correct way to do this is to use TryGetValue
obj item;
if(!dict.TryGetValue(name, out item))
return null;
return item;
This accesses the dictionary only once instead of twice.
If you really want...
“simple” vs “current” push.default in git for decentralized workflow
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The difference is that with simple, git push (without passing a refspec) will fail if the curr...
Get exit code of a background process
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12 Answers
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jQuery posting valid json in request body
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1 Answer
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Git push branch from one remote to another?
...rorg origin/one:refs/heads/one
Counting objects: 5, done.
Writing objects: 100% (3/3), 240 bytes, done.
Total 3 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (3/3), done.
To /tmp/rorg
* [new branch] origin/one -> one
So origin/BRANCHNAME:refs/heads/BRANCHNAME
Checking in my rorg ...
JavaScript variables declare outside or inside loop?
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11 Answers
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Count number of matches of a regex in Javascript
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194
tl;dr: Generic Pattern Counter
// THIS IS WHAT YOU NEED
const count = (str) => {
const r...
Negation in Python
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231
The negation operator in Python is not. Therefore just replace your ! with not.
For your exampl...
Using -performSelector: vs. just calling the method
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191
Basically performSelector allows you to dynamically determine which selector to call a selecto...
What components are MVC in JSF MVC framework?
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This depends on the point of view (pun intented).
In the big architectural picture, your own ...