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What does -> mean in Python function definitions?
I've recently noticed something interesting when looking at Python 3.3 grammar specification :
7 Answers
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What is the correct way to start a mongod service on linux / OS X?
...ll mongodb
==> Downloading https://homebrew.bintray.com/bottles/mongodb-3.0.6.yosemite.bottle.tar.gz ### 100.0%
==> Pouring mongodb-3.0.6.yosemite.bottle.tar.gz
==> Caveats
To have launchd start mongodb at login:
ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents
Then to load m...
How can I get zoom functionality for images?
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13 Answers
13
Active
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The selected run destination is not valid for this action
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edited Dec 17 '15 at 20:36
qwerty_so
29.5k66 gold badges4949 silver badges7777 bronze badges
answered ...
How to check if an object is a list or tuple (but not string)?
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331
In python 2 only (not python 3):
assert not isinstance(lst, basestring)
Is actually what yo...
Check if page gets reloaded or refreshed in JavaScript
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edited Jul 17 at 17:38
Sridhar Ratnakumar
65.2k5757 gold badges135135 silver badges167167 bronze badges
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Update value of a nested dictionary of varying depth
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273
@FM's answer has the right general idea, i.e. a recursive solution, but somewhat peculiar coding...
How can I get the console logs from the iOS Simulator?
...You can either use the Console.app to see this, or just do a tail (iOS 7.0.3 64 bits for example):
tail -f ~/Library/Logs/iOS\ Simulator/7.0.3-64/system.log
EDIT 2:
They are now located in ~/Library/Logs/CoreSimulator/<simulator-hash>/system.log
tail -f ~/Library/Logs/CoreSimulator/<sim...
How to select the row with the maximum value in each group
...t]$V1]
# Subject pt Event
# 1: 1 5 2
# 2: 2 17 2
# 3: 3 5 2
If you'd like just the first max value of pt:
group[group[, .I[which.max(pt)], by=Subject]$V1]
# Subject pt Event
# 1: 1 5 2
# 2: 2 17 2
# 3: 3 5 2
In this case, it ...
jQuery vs document.querySelectorAll
...ldren.classList.contains('foo');
// do some more magic stuff here
}
3) apply the css style
// .css('background-color', 'green')
// note different notation
element.style.backgroundColor = "green" // or
element.style["background-color"] = "green"
This code would be at least two times as much...