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How do I Search/Find and Replace in a standard string?
...one can do better, but this solution has the merit of being easy to understand.
– Zonko
Sep 21 '11 at 8:57
1
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How to check if an object is an array?
...Array.isArray(obj)
(Supported by Chrome 5, Firefox 4.0, IE 9, Opera 10.5 and Safari 5)
For backward compatibility you can add the following
# only implement if no native implementation is available
if (typeof Array.isArray === 'undefined') {
Array.isArray = function(obj) {
return Object.pr...
numpy: most efficient frequency counts for unique values in an array
...p.array([1,1,1,2,2,2,5,25,1,1])
y = np.bincount(x)
ii = np.nonzero(y)[0]
And then:
zip(ii,y[ii])
# [(1, 5), (2, 3), (5, 1), (25, 1)]
or:
np.vstack((ii,y[ii])).T
# array([[ 1, 5],
[ 2, 3],
[ 5, 1],
[25, 1]])
or however you want to combine the counts and the uni...
SQLAlchemy: cascade delete
...ession.query().filter().delete() (which doesn't put elements in the memory and deletes directly from db).
Using this method sqlalchemy's cascade='all, delete' doesn't work. There is a solution though: ON DELETE CASCADE through db (note: not all databases support it).
class Child(Base):
__table...
Regex - Does not contain certain Characters
... this means, beginning of string, then one or more of anything except < and >, then the end of the string.
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Simulate limited bandwidth from within Chrome?
... answered Apr 26 '12 at 8:17
Andy DaviesAndy Davies
5,65722 gold badges2323 silver badges2121 bronze badges
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What is java interface equivalent in Ruby?
Can we expose interfaces in Ruby like we do in java and enforce the Ruby modules or classes to implement the methods defined by interface.
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How do I consume the JSON POST data in an Express application
...See this answer which provides some guidance.
If you are using valid JSON and are POSTing it with Content-Type: application/json, then you can use the bodyParser middleware to parse the request body and place the result in request.body of your route.
var express = require('express')
, app = exp...
Changing the browser zoom level
...t would change the browser zoom level (+) (-). I'm requesting browser zoom and not css zoom because of image size and layout issues.
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How to save password when using Subversion from the console
... no. Change it to yes (or just comment it out because it defaults to yes), and the next time you give Subversion your password it should save it.
You might want to ensure that the owner and permissions of ~/.subversion/config are correct (no public or group access; 600).
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