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Test a weekly cron job [closed]
...g unexpected and cause breakage until the bugs are sorted out. (See also: https://stackoverflow.com/a/17805088/237059 )
A general approach to this problem is helpful to have.
One of my favorite techniques is to use a script I wrote called 'crontest'. It launches the target command inside a GNU s...
How to disable typing special characters when pressing option key in Mac OS X? [closed]
...an also add other keys you like! Official reference:
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/EventOverview/TextDefaultsBindings/TextDefaultsBindings.html
Here is a good list of things you can bind to:
https://www.hcs.harvard.edu/~jrus/site/select...
Can I change the checkbox size using CSS?
... depends on font size. Keyboard actions (space, tabs) are also supported.
https://jsfiddle.net/ohf7nmzy/2/
body{
padding:0 20px;
}
.big{
font-size: 50px;
}
/* CSS below will force radio/checkbox size be same as font size */
label{
position: relative;
line-height: 1.4;
}
/* rad...
Programmatically retrieve memory usage on iPhone
...memory gauge in Xcode's Debug navigator.
The value returned is in bytes.
https://forums.developer.apple.com/thread/105088#357415
Original code follows.
func memoryFootprint() -> mach_vm_size_t? {
// The `TASK_VM_INFO_COUNT` and `TASK_VM_INFO_REV1_COUNT` macros are too
// complex f...
Running a command as Administrator using PowerShell?
...Run as Administrator option :
PS> Start-Process powershell -Verb runAs
https://docs.microsoft.com/powershell/module/Microsoft.PowerShell.Management/Start-Process
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Difference between single and double square brackets in Bash
...IX vs Bash extension:
[ is POSIX
[[ is a Bash extension¹ documented at: https://www.gnu.org/software/bash/manual/bash.html#Conditional-Constructs
regular command vs magic
[ is just a regular command with a weird name.
] is just an argument of [ that prevents further arguments from being used....
Python Sets vs Lists
...
Set wins due to near instant 'contains' checks: https://en.wikipedia.org/wiki/Hash_table
List implementation: usually an array, low level close to the metal good for iteration and random access by element index.
Set implementation: https://en.wikipedia.org/wiki/Hash_table,...
Understanding the Rails Authenticity Token
... where the Same Origin Policy comes to the rescue, as I have explained at: https://security.stackexchange.com/questions/8264/why-is-the-same-origin-policy-so-important/72569#72569
How Rails sends the tokens
Covered at: Rails: How Does csrf_meta_tag Work?
Basically:
HTML helpers like form_tag ad...
CSS text-overflow in a table cell?
...sired min-width (or none at all) to the table cell.
Of course the fiddle: https://jsfiddle.net/9wycg99v/23/
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Maven dependency for Servlet 3.0 API?
...
This seems to be added recently:
https://repo1.maven.org/maven2/javax/servlet/javax.servlet-api/3.0.1/
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version&...