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How can i tell if an object has a key value observer attached
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edited Jul 16 '11 at 11:14
Bo Persson
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answe...
CSS background image to fit width, height should auto-scale in proportion
...ioned picture of the day as a background. However, we cropped the image to 4x3 for some reason. We could set the background-size property to some fixed length, but we will focus on contain and cover. Note that I also assume that we didn't mangle the width and/or height of body.
contain
contain
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Android LinearLayout : Add border with shadow around a LinearLayout
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answered Jun 7 '14 at 8:24
HariharanHariharan
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Xcode 6 Storyboard the wrong size?
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edited Jan 26 '16 at 18:40
jackslash
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answered Jun 8 '14 at 1...
Most efficient way to store thousand telephone numbers
... (2^m - 1) * 10 bits. (10 bits is enough for storing a number less than 1024.)
The last k bits of all (reduced) phone numbers are stored contiguously in memory; so if k is, say, 7, then the first 7 bits of this block of memory (bits 0 thru 6) correspond to the last 7 bits of the first (reduced) pho...
Make anchor link go some pixels above where it's linked to
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Eric OlsonEric Olson
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How to set Java environment path in Ubuntu
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set environment variables as follows
Edit the system Path file /etc/profile
sudo gedit /etc/p...
Sleep until a specific time/date
... syntax:
current_epoch=$(date +%s.%N)
target_epoch=$(date -d "20:25:00.12345" +%s.%N)
sleep_seconds=$(echo "$target_epoch - $current_epoch"|bc)
sleep $sleep_seconds
Note that macOS / OS X does not support precision below seconds, you would need to use coreutils from brew instead → see these ...
Stretch and scale CSS background
... Jørgen R
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answered Dec 21 '10 at 2:11
ClementClement
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Cron and virtualenv
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gak
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answered Jul 20 '10 at 4:40
arsars
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