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Running a cron job on Linux every six hours
...
You need to use *
0 */6 * * * /path/to/mycommand
Also you can refer to https://crontab.guru/ which will help you in scheduling better...
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AngularJS : automatically detect change in model
...s actually changed, you can use the following module, developed by myself:
https://github.com/betsol/angular-input-modified
It adds additional properties and methods to the form and it's child elements. With it, you can test whether some element contains new data or even test if entire form has new...
What are five things you hate about your favorite language? [closed]
...nt to using eval() and so hideously wrong I have never used it (see http://www.php.net/create_function).
3) A try/catch system which can only catch about 80% of errors that might occur.
4) Regex support just as lame as lambda support because it has to be written inside regular strings, making one ...
Programmatically scroll a UIScrollView
...l view. If the area is already
visible, the method does nothing.
From: https://developer.apple.com/documentation/uikit/uiscrollview/1619439-scrollrecttovisible
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Should I use single or double colon notation for pseudo-elements?
... though the rest of the selector may look reasonable in CSS 2.1.
http://www.w3.org/TR/CSS2/syndata.html#rule-sets
You could however use
.foo:after { /*styles*/ }
.foo::after { /*styles*/ }
On the other hand this is more verbose than necessary; for now, you can stick with the one-colon notatio...
Interface vs Abstract Class (general OO)
...are non-virtual methods that 'thunk' to private virtual methods:
http://www.gotw.ca/publications/mill18.htm
http://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Non-Virtual_Interface
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Is JavaScript an untyped language?
...ypes for the language: undefined,null,string,boolean,number,object
http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
A more accurate designation for JavaScript would be implicitly typed, dynamically typed, or weakly/loosely typed (or some combination thereof), in that JavaS...
How to Sync iPhone Core Data with web server, and then push to other devices? [closed]
... look into the Couchbase mobile. This basically does all you want. (http://www.couchbase.com/nosql-databases/couchbase-mobile)
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UIView frame, bounds and center
... @David It's from Stanford's CS193p course on iTunesU found here: www.stanford.edu/class/cs193p/cgi-bin/drupal/downloads-2013-fall
– preynolds
Aug 21 '15 at 5:54
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How to convert std::string to lower case?
...ose. Better use boost::locale::to_lower when UTF-8 is involved. See http://www.boost.org/doc/libs/1_51_0/libs/locale/doc/html/conversions.html
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