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Extract substring in Bash

...o-based) and "5" is the length. Also, +1 for @gontard 's link that lays it all out! – Doktor J Sep 12 '14 at 17:32 ...
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How to [recursively] Zip a directory in PHP?

...ce), file_get_contents($source)); } return $zip->close(); } Call it like this: Zip('/folder/to/compress/', './compressed.zip'); share | improve this answer | ...
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UITableViewCell, show delete button on swipe

... During startup in (-viewDidLoad or in storyboard) do: self.tableView.allowsMultipleSelectionDuringEditing = NO; Override to support conditional editing of the table view. This only needs to be implemented if you are going to be returning NO for some items. By default, all items are editable....
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Exif manipulation library for python [closed]

...mation from Jpeg and Tiff files which include it. This information is typically included in images created using digital imaging devices such as digital cameras, digital film scanners, etc. However, it looks like pyexif hasn't been updated in quite while. They recommend if theirs isn't doing the ...
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How to validate an e-mail address in swift?

...s quite funny that ............ as well as (1) the regex being utterly, totally incorrect (2) the regex (even within the context of what it's trying to do) has major errors (3) the Swift is wrong (4) even setting that aside, the style is totally wrong (5) not that it matters given all the rest but i...
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Find an item in List by LINQ?

Here I have a simple example to find an item in a list of strings. Normally I use for loop or anonymous delegate to do it like this: ...
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?

... First of all, never use a for in loop to enumerate over an array. Never. Use good old for(var i = 0; i<arr.length; i++). The reason behind this is the following: each object in JavaScript has a special field called prototype. Ever...
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Is inline assembly language slower than native C++ code?

... Yes, most times. First of all you start from wrong assumption that a low-level language (assembly in this case) will always produce faster code than high-level language (C++ and C in this case). It's not true. Is C code always faster than Java code? N...
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How can you determine a point is between two other points on a line segment?

Let's say you have a two dimensional plane with 2 points (called a and b) on it represented by an x integer and a y integer for each point. ...
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Delete column from pandas DataFrame

... This answer isn't really correct - the pandas developers didn't, but that doesn't mean it is hard to do. – wizzwizz4 Sep 30 '17 at 9:42 ...