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Checking for the correct number of arguments
How do i check for the correct number of arguments (one argument). If somebody tries to invoke the script without passing in the correct number of arguments, and checking to make sure the command line argument actually exists and is a directory.
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Check if element is visible in DOM
Is there any way that I can check if an element is visible in pure JS (no jQuery) ?
18 Answers
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Returning multiple values from a C++ function
...on? For example, imagine a function that divides two integers and returns both the quotient and the remainder. One way I commonly see is to use reference parameters:
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'git branch -av' showing remote branch that no longer exists
This is probably a dumb question, but I'm brand new to git and am seeing a remote branch that no longer exists.
3 Answers
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Pushing empty commits to remote
I have pushed one commit to remote but now I realized that the commit message is not correct. I would like to change the commit message but AFAIK it is not possible. So i decided to create empty commit with correct message:
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How do I read any request header in PHP
...X with the name of the header you need in UPPERCASE (and with '-' replaced by '_')
$headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX'];
ELSE IF: you run PHP as an Apache module or, as of PHP 5.4, using FastCGI (simple method):
apache_request_headers()
<?php
$headers = apache_request_headers();...
Should you always favor xrange() over range()?
..., especially when you're iterating over a large range, xrange() is usually better. However, there are still a few cases why you might prefer range():
In python 3, range() does what xrange() used to do and xrange() does not exist. If you want to write code that will run on both Python 2 and Pytho...
Disable Browser Link - which toolbar
I want to disable visual studios browser link. I found this question:
How can I disable __vwd/js/artery in VS.NET 2013?
and many other resources saying I should untick "Enable Browser Link" in the toolbar, but that toolbar doesn't show up in my visual studio. I've enabled all the debug toolbars b...
Measure elapsed time in Swift
... , we can use System.nanoTime(), is there any equivalent methods are available in Swift to accomplish this?
17 Answers
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Add alternating row color to SQL Server Reporting services report
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Go to the table row's BackgroundColor property and choose "Expression..."
Use this expression:
= IIf(RowNumber(Nothing) Mod 2 = 0, "Silver", "Transparent")
This trick can be applied to many areas of the report.
And in .NET 3.5+ You...