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What and where are the stack and heap?
...ed the next time a function is called. The stack is always reserved in a LIFO (last in first out) order; the most recently reserved block is always the next block to be freed. This makes it really simple to keep track of the stack; freeing a block from the stack is nothing more than adjusting one ...
How to open a new tab using Selenium WebDriver?
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use Keys.COMMAND instead of Keys.CONTROL if you are using mac
– nanospeck
Dec 19 '15 at 7:36
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Upgrade python packages from requirements.txt using pip command
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No. Your requirements file has been pinned to specific versions. If your requirements are set to that version, you should not be trying to upgrade beyond those versions. If you need to upgrade, then you need to switch to unpinned versions in your requirements file.
Example:...
apache redirect from non www to www
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@JonathanBerger If you too many redirects, then you have probably not configured well the file. Make sure to have 2 VirtualHosts: one with non-www which is the above and the other with ServerName www.example.com which has the real configurat...
LaTeX: Prevent line break in a span of text
... after such lines), and will have a chance to revise the contents, whereas if there was too much space, you might not notice it.
Use \sloppy or \begin{sloppypar}...\end{sloppypar} to adjust this behavior, at least a little. Another possibility is \raggedright (or \begin{raggedright}...\end{raggedri...
How to clear/remove observable bindings in Knockout.js?
...ts themselves, which is apparently where all the knockout magic is stored. If anyone has a source on documentation, I would be much obliged.
– Patrick M
Nov 9 '12 at 15:40
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JavaScript: how to change form action attribute value based on selection?
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If you design for mobile devices it would be better to change action "on submit" for performance issues. Check my answer below.
– trante
Dec 13 '13 at 13:13
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Print a string as hex bytes?
...answer sort of assume that your input never contains non-ASCII characters. If your input might contain things like emojis or non-Latin based writting systems, you might want to use ":".join("{:04x}".format(ord(c)) for c in s) (replacing 02x with 04x to zero-pad each number to be 4 digits) instead
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Difference between CTE and SubQuery?
... You would have to use the profiler and actual execution plan to spot any differences, and that would be specific to your setup (so we can't tell you the answer in full).
In general; A CTE can be used recursively; a sub-query cannot. This makes them especially well suited to tree structures.
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How to replace spaces in file names using a bash script
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If you're running this on OS X, you'll need to brew install rename
– loeschg
Aug 8 '14 at 17:54
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