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What is the !! (not not) operator in JavaScript?
... !!"false" === true // ...even if it contains a falsy value
!!window.foo === false // undefined is falsy
!!null === false // null is falsy
!!{} === true // an (empty) object is truthy
!![] === true // an (empty) array is truthy; PHP programmers be...
Is AsyncTask really conceptually flawed or am I just missing something?
...the activity before that, because it is still running. And the activity's window will always be valid until onDestroy() is called. By setting to null there, the async task will know that the activity is no longer valid. (And when a config changes, the previous activity's onDestroy() is called and...
What does the fpermissive flag do?
...want a real-world use case for this, try compiling a very old version of X Windows-- say, either XFree86 or XOrg from aboout 2004, right around the split-- using a "modern" (cough) version of gcc, such as 4.9.3.
You'll notice the build CFLAGS specify both "-ansi" and "-pedantic". In theory, this m...
Can I store the .git folder outside the files I want tracked?
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in windows, repo.git is created with its hiden attribute set. I then change it manually. Do you happen to know if this is safe?
– PA.
Aug 7 '15 at 7:57
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Git rebase fails, 'Your local changes to the following files would be overwritten by merge'. No loca
...global core.trustctime false
I think it's to do with differences between windows file times, linux file times and mac file times. who knows, feel free to comment if you do.
Update: This blog post explains what's going on, sort of.
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Difference between UTF-8 and UTF-16?
...UTF-16 may continue being used internally by some systems such as Java and Windows, what little use of UTF-16 you may have seen in the past for data files, data exchange, and such, will likely fade away entirely.
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What exactly is Heroku?
... - 70 requests per second.
Heroku competitors are:
OpenShift by Red Hat
Windows Azure
Amazon Web Services
Google App Engine
VMware
HP Cloud Services
Force.com
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How dangerous is it to compare floating point values?
...g a graphics coordinate as some kind of flag, like for example to see if a window is docked or not, you should not do this. Use a boolean flag that is separate from the graphics presentation layer instead.
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Is there a way to check if a file is in use?
... The key thing to understand here is that this API is simply using the windows API to get a file handle. As such they need to translate the error code received from the C API and wrap it to an exception to throw. We have exception handling in .Net so why not use it. That way you can write a c...
Get Base64 encode file-data from Input Form
... upload just peachy. Try this if you want to double check before pushing:
window.open("data:application/octet-stream;base64," + base64);
This will download it as a file.
Other info:
To get the data as a Uint8Array, look at the MDN docs:
https://developer.mozilla.org/en/DOM/FileReader
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