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what is the preferred way to mutate a React state?
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165
concat returns a new array, so you can do
this.setState({list: this.state.list.concat([newO...
How do I run a single test with Nose in Pylons
I have a Pylons 1.0 app with a bunch of tests in the test/functional directory.
I'm getting weird test results and I want to just run a single test.
The nose documentation says I should be able to pass in a test name at the command line but I get ImportErrors no matter what I do
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Can you define aliases for imported modules in Python?
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191
import a_ridiculously_long_module_name as short_name
also works for
import module.submodule...
Array.Add vs +=
...s you should try to add them in as few operations as possible, ex:
$arr = 1..3 #Array
$arr += (4..5) #Combine with another array in a single write-operation
$arr.Count
5
If that's not possible, consider using a more efficient collection like List or ArrayList (see the other answer).
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Difference between json.js and json2.js
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edited Feb 4 '11 at 19:07
Chris
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an...
How to create a shared library with cmake?
...PTION (this latter variable necessitate cmake 3.9):
project(mylib VERSION 1.0.1 DESCRIPTION "mylib description")
Declare a new library target. Please avoid the use of file(GLOB ...). This feature does not provide attended mastery of the compilation process. If you are lazy, copy-paste output of l...
Rails how to run rake task
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132
You can run Rake tasks from your shell by running:
rake task_name
To run from from Ruby (e....
XPath to select element based on childs child value
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1 Answer
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Create table in SQLite only if it doesn't exist already
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edited Jun 1 '18 at 17:21
answered Nov 4 '10 at 15:06
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Postgres manually alter sequence
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The parentheses are misplaced:
SELECT setval('payments_id_seq', 21, true); # next value will be 22
Otherwise you're calling setval with a single argument, while it requires two or three.
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