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Accessing nested JavaScript objects and arays by string path
...(o, p) => o ? o[p] : defaultValue, object)
Example to use:
resolvePath(window,'document.body') => <body>
resolvePath(window,'document.body.xyz') => undefined
resolvePath(window,'document.body.xyz', null) => null
resolvePath(window,'document.body.xyz', 1) => 1
Bonus:
To set a p...
Refresh image with a new one at the same url
...t;iframe> and then calling location.reload(true) on the iframe's contentWindow.
The steps are:
Load the image to be refreshed into a hidden iframe. This is just a setup step - it can be done long in advance the actual refresh, if desired. It doesn't even matter if the image fails to load at ...
How to recursively delete an entire directory with PowerShell 2.0?
...tory and all its subdirectories in PowerShell? I am using PowerShell V2 in Windows 7.
17 Answers
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Prevent jQuery UI dialog from setting focus to first textbox
... Setting focus to any element that is off screen scrolls the window up or down to that element, and this happens whenever the window gets focus, not only on dialog open. If I use Firebug to "inspect element" and then click back in the document window, my window scrolls up or down to wh...
How to check for an undefined or null variable in JavaScript?
... To prevent a ReferenceError when checking a global variable, use window.someProperty == null. For local variables, you can easily make sure they are declared: instead of writing if (...) {var local = ""} write var local; if (...) { local = ""; }
– Aloso
...
Storing custom objects in an NSMutableArray in NSUserDefaults
...s.onClickDraftSave('#login-link');
var $window = $(window),
onScroll = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.sc...
How to ignore deprecation warnings in Python
...dule:
#!/usr/bin/env python -W ignore::DeprecationWarning
If you're on Windows: pass -W ignore::DeprecationWarning as an argument to Python. Better though to resolve the issue, by casting to int.
(Note that in Python 3.2, deprecation warnings are ignored by default.)
...
What is a classpath and how do I set it?
...t/myproject/lib/CoolFramework.jar:/home/myaccount/myproject/output/
On a Windows machine you have to go to your environment settings and either add or modify the value that is already there.
The second way is to use the -cp parameter when starting Java, like this:
java -cp "/home/myaccount/mypro...
What is the easiest way to make a C++ program crash?
...
Windows. GCC-5.4.0. Exit code: 3. No error message box. Console message: "This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information.".
...
How do I close all open tabs at once?
...” is much faster achieved by “:on” (for “only”, i.e. “the only window to show”). :)
– Bombe
Feb 4 '09 at 8:01
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