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Determining Whether a Directory is Writeable
...n to determine whether a directory is writeable for the user executing the script? Since this will likely involve using the os module I should mention I'm running it under a *nix environment.
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When should we call System.exit in Java
...ome kind of fatal error), so if you called java from a batch file or shell script you'd be able to get this value and get an idea if the application was successful.
It would make a quite an impact if you called System.exit(0) on an application deployed to an application server (think about it befor...
Xcode 4: How do you view the console?
...rget (Gray Icon)
Select the Build Phases (Top Center)
Add Build Phase "Run Script" (Green Plus Button, bottom right)
In the textbox below the Shell textfield replace
"Type a script or drag a script file from your workspace" with
"open ${TARGET_BUILD_DIR}/${TARGET_NAME}"
This will open a terminal w...
Fastest way(s) to move the cursor on a terminal command line?
...bout whether you'd maybe like to put this horrendously long command into a script? :-)
Actually, I can go one better than that: "3f5B" to find the third occurrence of "5" then back up to the start of the word.
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How to run an EXE file in PowerShell with parameters with spaces and quotes
...By default Windows PowerShell opens a new window.
References : Powershell/Scripting/Start-Process
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Is there a download function in jsFiddle?
...tton in the toolbar <a class="aiButton" id="showjscode" title="Show JavaScript code" href="#showjs"><span class="icon-pencil"></span>Show JS</a> . It doesn't do anything, but maybe is coming soon
– corbacho
Feb 13 '13 at 20:30
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How to calculate the SVG Path for an arc (of a circle)
...Note that the arcSweep variable is actually controlling the large-arc-flag svg A parameter. In the above code, the value for the sweep-flag parameter is always zero. arcSweep should probably be renamed to something like longArc.
– Steven Grosmark
Jan 9 '16 at...
ReactJS - Does render get called any time “setState” is called?
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If your state contains a relatively large javascript object (~1k total properties), which is rendered as a large tree of components (~100 total)... should you let the render functions construct the virtual dom, or should you, before setting the state, compare the new sta...
Tricks to manage the available memory in an R session
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Ensure you record your work in a reproducible script. From time-to-time, reopen R, then source() your script. You'll clean out anything you're no longer using, and as an added benefit will have tested your code.
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What are the underlying data structures used for Redis?
...edis 2.6 you can even manipulate this kind of object server side using Lua scripts.
Another interesting usage of strings is bitmaps, and in general random access arrays of bytes, since Redis exports commands to access random ranges of bytes, or even single bits. For instance check this good blog po...