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How to prevent a jQuery Ajax request from caching in Internet Explorer?
... cache (default: true, false for dataType 'script' and 'jsonp') Type: Boolean If set to false, it will force requested pages not to be cached by the browser. Note: Setting cache to false will only work correctly with HEAD and GET requests. It works by appending "_={ti...
Avoid duplicates in INSERT INTO SELECT query in SQL Server
...ourse between both tables. This will work the first time you run the below script. The duplicate ID in table 1, will not insert...
If you run it the second time, you will get a
Violation of PRIMARY KEY constraint error
This is the code:
Insert into Table_2
Select distinct *
from Table_1
whe...
How to inherit from a class in javascript?
...
In JavaScript you don't have classes but you can get inheritance and behavior reuse in many ways:
Pseudo-classical inheritance (through prototyping):
function Super () {
this.member1 = 'superMember1';
}
Super.prototype.member2 =...
Why does jQuery or a DOM method such as getElementById not find the element?
...
The element you were trying to find wasn’t in the DOM when your script ran.
The position of your DOM-reliant script can have a profound effect upon its behavior. Browsers parse HTML documents from top to bottom. Elements are added to the DOM and scripts are (generally) executed as they'r...
Explicitly calling return in a function or not
...l word with real data and real algorithm could not be counted or make your script run faster.
Is it better without calling return?
Return is good tool for clearly designing "leaves" of code where the routine should end, jump out of the function and return value.
# here without calling .Primitive...
sed in-place flag that works both on Mac (BSD) and Linux
...n OSX, I always install GNU sed version via Homebrew, to avoid problems in scripts, because most scripts were written for GNU sed versions.
brew install gnu-sed --with-default-names
Then your BSD sed will be replaced by GNU sed.
Alternatively, you can install without default-names, but then:
C...
How to check if an object is an array?
...
The method given in the ECMAScript standard to find the class of Object is to use the toString method from Object.prototype.
if( Object.prototype.toString.call( someVar ) === '[object Array]' ) {
alert( 'Array!' );
}
Or you could use typeof to te...
Event system in Python
...
I've been doing it this way:
class Event(list):
"""Event subscription.
A list of callable objects. Calling an instance of this will cause a
call to each item in the list in ascending order by index.
Example Usage:
>>> def f(x):
... print 'f(%s)' % x
...
Activate a virtualenv via fabric as deploy user
I want to run my fabric script locally, which will in turn, log into my server, switch user to deploy, activate the projects .virtualenv, which will change dir to the project and issue a git pull.
...
Linux: copy and create destination dir if it does not exist
...rn about: $_. I can see myself using it quite a bit from now on. I wrote a script to automate the whole process and put up in this thread. Give it a go, maybe you'll like: stackoverflow.com/questions/1529946/…
– thebunnyrules
Feb 26 '18 at 6:56
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