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Validate decimal numbers in JavaScript - IsNumeric()
...hand side is now numeric, type coercion is again used. Now that the input from both sides was coerced to the same type from the same original value, you would think they should always be the same (always true). However, there's a special rule that says NaN is never equal to NaN, and so a value that...
TCP: can two different sockets share a port?
...onceptual model a lot of people have in mind.
This is intuitive, because from the standpoint of the client, he has an IP address, and connects to a server at IP:PORT. Since the client connects to port 80, then his port must be 80 too? This is a sensible thing to think, but actually not what happen...
How do I adb pull ALL files of a folder present in SD Card
...3.jpg
3 files pulled. 0 files skipped.
Specific Files/Folders using find from BusyBox:
adb shell find "/sdcard/Folder1" -iname "*.jpg" | tr -d '\015' | while read line; do adb pull "$line"; done;
Here is an explanation:
adb shell find "/sdcard/Folder1" - use the find command, use the top folde...
How does the paste image from clipboard functionality work in Gmail and Google Chrome 12+?
I noticed a blog post from Google that mentions the ability to paste images directly from the clipboard into a Gmail message if you're using the latest version of Chrome. I tried this with my version of Chrome (12.0.742.91 beta-m) and it works great using control keys or the context menu.
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Fastest way to get the first object from a queryset in django?
Often I find myself wanting to get the first object from a queryset in Django, or return None if there aren't any. There are lots of ways to do this which all work. But I'm wondering which is the most performant.
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Open another application from your own (intent)
...te an intent with action=MAIN and category=LAUNCHER
Get the PackageManager from the current context using context.getPackageManager
packageManager.queryIntentActivity(<intent>, 0) where intent has category=LAUNCHER, action=MAIN or packageManager.resolveActivity(<intent>, 0) to get the fi...
Should accessing SharedPreferences be done off the UI Thread?
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Wow, wasn't expecting to get such a clear answer straight from the source! Thanks much!
– cottonBallPaws
Dec 7 '10 at 1:50
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Why does Python code run faster in a function?
...p to the current version (1.8 at the time of this writing.) The test code from the OP runs about four times slower in global scope compared to inside a function.
– GDorn
Jun 28 '12 at 17:17
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Programmatically get height of navigation bar
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for me, view.window is nil. So i've to take frame from UIApplication.shared.windows's keywnidow. (iOS 14)
– Lal Krishna
Sep 17 at 9:57
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What is the difference between git clone and checkout?
...e overwriting your a file in your working copy with a version of that file from another revision.
– svick
Sep 4 '11 at 10:44
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