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In where shall I use isset() and !empty()
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In the most general way :
isset tests if a variable (or an element of an array, or a property of an object) exists (and is not null)
empty tests if a variable (...) contains some non-empty data.
To answer question 1 :
$str = '';
var_dump(isset($str));
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How to continue a task when Fabric receives an error
...kdir tmp') # can't fail
with settings(warn_only=True):
sudo('touch tmp/test') # can fail
sudo('rm tmp') # can't fail
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Could not change executable permissions on the application
Just updated to iOS 6 sdk and latest Xcode and get this when trying to build to my 3gs.
I 've added armv6 under valid architectures?
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jQuery - add additional parameters on submit (NOT ajax)
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Similar answer, but I just wanted to make it available for an easy/quick test.
var input = $("<input>")
.attr("name", "mydata").val("go Rafa!");
$('#easy_test').append(input);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.3/jquery.min.js"></s...
Choosing between MEF and MAF (System.AddIn)
...ll directory and the application sees it and runs it. It also facilitates testing. You can instantiate the object you want to test and feed it mock objects for all its dependencies, but when it runs as a composed application, the composition process automatically hooks all the real objects togethe...
How to check if running in Cygwin, Mac or Linux?
...GW64_NT" ]; then
# Do something under 64 bits Windows NT platform
fi
Testing
Linux (Ubuntu 12.04 LTS, Kernel 3.2.0) tested OK.
OS X (10.6.8 Snow Leopard) tested OK.
Windows (Windows 7 64 bit) tested OK.
What I learned
Check for both opening and closing quotes.
Check for missing parenthes...
How do I check (at runtime) if one class is a subclass of another?
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Subclass testing makes unit testing of many things, particularly Django's models, much easier. "Python is not Java." Why must python programmers have such chips on their shoulders?
– Michael Bacon
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how to permit an array with strong parameters
...me, DateTime, StringIO, IO,
ActionDispatch::Http::UploadedFile and Rack::Test::UploadedFile.
To declare that the value in params must be an array of permitted scalar values map the key to an empty array:
params.permit(:id => [])
In my app, the category_ids are passed to the create acti...
Progress indicator during pandas operations
... internally..
here's the code from my gist (I'll add more pandas function tests there):
import pandas as pd
import numpy as np
import multiprocessing
from functools import partial
def _df_split(tup_arg, **kwargs):
split_ind, df_split, df_f_name = tup_arg
return (split_ind, getattr(df_spli...
New line in text area
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try this.. it works:
<textarea id="test" cols='60' rows='8'>This is my statement one.&#10;This is my statement2</textarea>
replacing for tags:
$("textarea#test").val(replace($("textarea#test").val(), "<br>", "&#10;")));
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