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Number.sign() in javascript

... More elegant version of fast solution: var sign = number?number<0?-1:1:0 share | improve this answer | follow | ...
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JavaScript function similar to Python range()

...ned') { // one param defined stop = start; start = 0; } if (typeof step == 'undefined') { step = 1; } if ((step > 0 && start >= stop) || (step < 0 && start <= stop)) { return []; } var result = []; for...
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unable to start mongodb local server

...Cumulo Nimbus 5,87455 gold badges3939 silver badges6060 bronze badges answered Jan 31 '13 at 12:03 morphymorphy 1,77911 gold badge...
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ab load testing

... default it will hit http:// protocol if you don't specify it. ab -k -c 350 -n 20000 example.com/ By issuing the command above, you will be hitting http://example.com/ with 350 simultaneous connections until 20 thousand requests are met. It will be done using the keep alive header. After the pro...
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C

...here): unsigned int reverse(register unsigned int x) { x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1)); x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2)); x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4)); ...
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Undoing a 'git push'

...commit:branch_name or in your case git push -f origin cc4b63bebb6:alpha-0.3.0 You may have receive.denyNonFastForwards set on the remote repository. If this is the case, then you will get an error which includes the phrase [remote rejected]. In this scenario, you will have to delete and recrea...
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Check for array not empty: any?

...to empty? ? – RocketR Nov 17 '12 at 0:00 13 @RocketR you might want to checkout present? method. ...
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How do I know the script file name in a Bash script?

... me=`basename "$0"` For reading through a symlink1, which is usually not what you want (you usually don't want to confuse the user this way), try: me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")" IMO, that'll pro...
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Read-only and non-computed variable properties in Swift

...ation with private(set), like so: public private(set) var hours: UInt = 0 public private(set) var minutes: UInt = 0 public private(set) var seconds: UInt = 0 private keeps it local to a source file, while internal keeps it local to the module/project. private(set) creates a read-only property,...
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How do I use itertools.groupby()?

... ("vehicle", "school bus")] for key, group in groupby(things, lambda x: x[0]): for thing in group: print("A %s is a %s." % (thing[1], key)) print("") This will give you the output: A bear is a animal. A duck is a animal. A cactus is a plant. A speed boat is a vehicle. A schoo...