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Append integer to beginning of list in Python [duplicate]
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833
>>>var=7
>>>array = [1,2,3,4,5,6]
>>>array.insert(0,var)
>>>...
dispatch_after - GCD in Swift?
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I recommend using @matt's really nice delay function.
EDIT 2:
In Swift 3, there will be new wrappers for GCD. See here: https://github.com/apple/swift-evolution/blob/master/proposals/0088-libdispatch-for-swift3.md
The original example would be written as follows in Swift 3:
let deadlineTime = ...
How to declare constant map
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edited Feb 23 '17 at 22:50
Robert P
15k88 gold badges6262 silver badges110110 bronze badges
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Bare asterisk in function arguments?
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232
Bare * is used to force the caller to use named arguments - so you cannot define a function wit...
Create a dictionary with list comprehension
...sion:
{key: value for (key, value) in iterable}
Note: this is for Python 3.x (and 2.7 upwards). Formerly in Python 2.6 and earlier, the dict built-in could receive an iterable of key/value pairs, so you can pass it a list comprehension or generator expression. For example:
dict((key, func(key)) fo...
npm install vs. update - what's the difference?
...res "1.0" -> "1.1"
"already-installed-semver-module": "^1.4.3" // ignores "1.4.3" -> "1.5.2"
"already-installed-versioned-module": "3.4.1" // ignores ignores
"not-yet-installed-versionless-module": "*", // installs installs
"not-yet-installed-semver-module...
Can you have if-then-else logic in SQL? [duplicate]
...e1 WHERE project = 2
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 3) > 0)
SELECT product, price FROM table1 WHERE project = 3
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Is there a 'foreach' function in Python 3?
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user 451
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answered Aug 18 '13 at 0:33
Jo Are ByJo Are By
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Rails: Check output of path helper from console
... a Rails console, you can call app.post_path. This will work in Rails ~= 2.3 and >= 3.1.0.
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