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What does a \ (backslash) do in PHP (5.3+)?
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256
\ (backslash) is the namespace separator in PHP 5.3.
A \ before the beginning of a function r...
How to ignore all hidden directories/files recursively in a git repository?
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edited Jul 25 '13 at 23:37
answered Nov 5 '11 at 16:18
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Group by multiple columns in dplyr, using string vector input
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52
Since this question was posted, dplyr added scoped versions of group_by (documentation here). Th...
Error handling with node.js streams
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226
transform
Transform streams are both readable and writeable, and thus are really good 'middle...
convert a list of objects from one type to another using lambda expression
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321
Try the following
var targetList = origList
.Select(x => new TargetType() { SomeValue = x...
How to make completely transparent navigation bar in iOS 7
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296
From this answer
[self.navigationController.navigationBar setBackgroundImage:[UIImage new]
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Does Typescript support the ?. operator? (And, what's it called?)
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192
Update: it is supported as of TypeScript 3.7 and called Optional chaining: https://www.typescrip...
What are the differences between .gitignore and .gitkeep?
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Ondrej Slinták
28.4k1919 gold badges8989 silver badges124124 bronze badges
answered Aug 29 '11 at 12:20
WoobleWooble...
How do I send a cross-domain POST request via JavaScript?
...{
alert('POST failed.');
}
});
When you do the POST in step 2, your browser will send a "OPTIONS" method to the server. This is a "sniff" by the browser to see if the server is cool with you POSTing to it. The server responds with an "Access-Control-Allow-Origin" telling the browser...
How to find out what character key is pressed?
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SimpleJ
8,86755 gold badges2727 silver badges6363 bronze badges
answered Dec 4 '09 at 12:36
CoyodCoyod
2,...