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Reload the path in PowerShell
...with variable expansion) with a simple command:
refreshenv
Installation from cmd (requires administrator rights):
@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('h...
In C#, why is String a reference type that behaves like a value type?
... to this situation where we have a type with value sematics not inheriting from System.ValueType. Thanks Ben.)
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Parse an HTML string with JS
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Problem: I need to get links from <frame> tag. But with this solution, the frame tag are deleted...
– stage
May 21 '12 at 10:10
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What's the difference between using CGFloat and float?
...a double on 64-bit systems. However, the decision to do that was inherited from OS X, where it was made based on the performance characteristics of early PowerPC CPUs. In other words, you should not think that float is for 32-bit CPUs and double is for 64-bit CPUs. (I believe, Apple's ARM processors...
When to use -retainCount?
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To add to this, any information you could gain from -retainCount can be gotten (with much more detail) from Instruments and its tools.
– Dave DeLong
Jan 8 '11 at 21:45
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Immutable vs Mutable types
...he float object is considered to be immutable, with this type of example from my book:
16 Answers
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How can I remove non-ASCII characters but leave periods and spaces using Python?
I'm working with a .txt file. I want a string of the text from the file with no non-ASCII characters. However, I want to leave spaces and periods. At present, I'm stripping those too. Here's the code:
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Check if a value is in an array (C#)
...e, not compiled instructions. Linq uses loops and methods internally, but from the coders point of view all that is hidden and does not need to be worried about.
– Trisped
Nov 6 '12 at 19:29
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Python: List vs Dict for look up table
...he internal hashing implementation at what point the average time diverges from O(1) and starts converging on O(n). You can help the lookup performance by compartmentalizing the global sets into smaller sections based on some easily discernible attribute (like the value of the first digit, then the ...
How do I show my global Git configuration?
...u become a power user and use the feature often enough, to actually profit from typing less characters. I find it easier to find and remember the long --list option. For less obvious shorthands I often have to check what do they stand for, so I prefer long names. They're even easier, with command co...