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What is Domain Driven Design (DDD)? [closed]
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Take StackOverflow as an example. Instead of starting to design some web forms, you concentrate first on doing object-oriented modelling of the entities within your problem domain, for example Users, Questions, Answers, Votes, Comments etc. Since the design is driven by the details of the prob...
CASCADE DELETE just once
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@arthur you could probably use some version of row -> json -> text to get it done, however, I've not gone that far. Ive found through the years that a singular primary key (with potential secondary keys) is good for many reasons.
– Joe Love
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How to access the correct `this` inside a callback?
...ecially in closures).
Reference : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/this
function MyConstructor(data, transport) {
this.data = data;
var self = this;
transport.on('data', function () {
alert(self.data);
});
}
Method2: Arrow function ...
PHP shell_exec() vs exec()
...g with newlines in it
Conversely, if the output of the command is xml or json, then having each line as part of an array is not what you want, as you'll need to post-process the input into some other form, so in that case use shell_exec.
It's also worth pointing out that shell_exec is an alias fo...
What is the difference between DSA and RSA?
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Referring, https://web.archive.org/web/20140212143556/http://courses.cs.tamu.edu:80/pooch/665_spring2008/Australian-sec-2006/less19.html
RSA
RSA encryption and decryption are commutative
hence it may be used directly as a digital signature sch...
How can I check if a var is a string in JavaScript?
... number 4 here show the parentheses usage developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… it's definately more readable and less for a compiler parsing to consider. My guess on the 'order' is possibly a speed issue or related to how the compiler loads the argument stack, I'm not sure.
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Create aar file in Android Studio
...on check out maven. A nice write up on this topic can be found at: https://web.archive.org/web/20141002122437/http://blog.glassdiary.com/post/67134169807/how-to-share-android-archive-library-aar-across
About the .aar file format
An aar file is just a .zip with an alternative extension and specific...
How can I create an Asynchronous function in Javascript?
...ly, such as:
setInterval
setTimeout
requestAnimationFrame
XMLHttpRequest
WebSocket
Worker
Some HTML5 APIs such as the File API, Web Database API
Technologies that support onload
... many others
In fact, for the animation jQuery uses setInterval.
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Make browser window blink in task Bar
...r does for event reminders, and they probably put some thought into it.
A web page really isn't the best medium for need-to-know alerts. If you're designing something along the lines of "ZOMG, the servers are down!" alerts, automated e-mails or SMS messages to the right people might do the trick.
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MySQL ON DUPLICATE KEY - last insert id?
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Check this page out: https://web.archive.org/web/20150329004325/https://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to tha...