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When use getOne and findOne methods Spring Data JPA
...avor findOne()/findById() over getOne().
API Change
From at least, the 2.0 version, Spring-Data-Jpa modified findOne().
Previously, it was defined in the CrudRepository interface as :
T findOne(ID primaryKey);
Now, the single findOne() method that you will find in CrudRepository is which one ...
When should I use require() and when to use define()?
...quireJS's version 2 behavior of loading modules asynchronously. "RequireJS 2.0 will not execute the module's factory function (the function passed to define()), until there has been a require([]) call that has asked for it, or something that depends on it." github.com/jrburke/requirejs/wiki/…
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Formula to determine brightness of RGB color
... Model
sqrt(0.299 * R^2 + 0.587 * G^2 + 0.114 * B^2)
4th picture - WCAG 2.0 SC 1.4.3 relative luminance and contrast ratio formula (see @Synchro's answer here)
Pattern can be sometimes spotted on 1st and 2nd picture depending on the number of colors in one row. I never spotted any pattern on pic...
How to create local notifications?
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localNotification.alertBody = "This is local notification from Swift 2.0"
localNotification.timeZone = NSTimeZone.localTimeZone()
localNotification.repeatInterval = NSCalendarUnit.CalendarUnitMinute
localNotification.userInfo = ["Important":"Data"];
localNotification.soundName ...
How do I force Postgres to use a particular index?
...gresConf 2018, random_page_cost should be set to something between 1.0 and 2.0 for solid-state drives.
2) Cached data
If the required index data is already cached in RAM, an index scan will always be significantly faster than a sequential scan. The documentation says:
Correspondingly, if your ...
How to add to an existing hash in Ruby
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You can use double splat operator which is available since Ruby 2.0:
h = { a: 1, b: 2 }
h = { **h, c: 3 }
p h
# => {:a=>1, :b=>2, :c=>3}
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What is ApplicationException for in .NET?
...cations - will throw ApplicationException and derived.
But later, in .NET 2.0, that was dropped.
Thus derive from Exception.
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Why is document.body null in my javascript?
...ad handler or place it after the <body> tag (as mentioned by e-bacho 2.0).
<head>
<title>Javascript Tests</title>
<script type="text/javascript">
window.onload = function() {
var mySpan = document.createElement("span");
mySpan.innerHTML =...
What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association
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In JPA 2.0 if you want to delete an address if you removed it from a User entity you can add orphanRemoval=true (instead of CascadeType.REMOVE) to your @OneToMany.
More explanation between orphanRemoval=true and CascadeType.REMOVE ...
How do you automate Javascript minification for your Java web applications?
...d-time (using maven plugin)
Free and open source: Released under an Apache 2.0 license
several minification tools supported by wro4j: JsMin, Google Closure compressor, YUI etc
Very easy to use. Supports Servlet Filter, Plain Java or Spring Configuration
Javascript and CSS Meta Frameworks Support: C...