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How to convert a negative number to positive?
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216
>>> n = -42
>>> -n # if you know n is negative
42
>>> abs(n) ...
How to get a Docker container's IP address from the host
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52 Answers
52
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What does curly brackets in the `var { … } = …` statements do?
...r with Python, it's similar to this syntax:
>>> a, (b, c) = (1, (2, 3))
>>> a, b, c
(1, 2, 3)
The first code chunk is shorthand for:
var {Hotkey: Hotkey} = require("sdk/hotkeys");
// Or
var Hotkey = require("sdk/hotkeys").Hotkey;
You can rewrite the second code chunk as:
let...
Turning a Comma Separated string into individual rows
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270
You can use the wonderful recursive functions from SQL Server:
Sample table:
CREATE TABLE ...
Append value to empty vector in R?
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212
Appending to an object in a for loop causes the entire object to be copied on every iteration,...
How do I step out of a loop with Ruby Pry?
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edited May 22 '19 at 14:05
Qortex
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How to pick just one item from a generator?
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Everytime you would like an item, use
next(g)
(or g.next() in Python 2.5 or below).
If the generator exits, it will raise StopIteration. You can either catch this exception if necessary, or use the default argument to next():
next(g, default_value)
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TextView - setting the text size programmatically doesn't seem to work
I am using Eclipse Indigo, testing on 2 emulators(2.2 and 3.0).
7 Answers
7
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How do I set/unset a cookie with jQuery?
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Update April 2019
jQuery isn't needed for cookie reading/manipulation, so don't use the original answer below.
Go to https://github.com/js-cookie/js-cookie instead, and use the library there that doesn't depend on jQuery.
Basic example...
How do you write multiline strings in Go?
...e string is delimited by backticks instead of double quotes.
`line 1
line 2
line 3`
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