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How do you maintain development code and production code? [closed]
...have only the production ready code in the development branch, or should untested latest code be available in the development branch?
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Evaluate empty or null JSTL c tags
... JSTL?
You can use the empty keyword in a <c:if> for this:
<c:if test="${empty var1}">
var1 is empty or null.
</c:if>
<c:if test="${not empty var1}">
var1 is NOT empty or null.
</c:if>
Or the <c:choose>:
<c:choose>
<c:when test="${empty var1...
jquery if div id has children
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performance test results in 0.002s - i prefer this way, because it's best readable...
– dtrunk
Mar 1 '12 at 10:15
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Testing two JSON objects for equality ignoring child order in Java
...rts comparing two JSON objects ignoring child order, specifically for unit testing JSON returning from a web service.
25 An...
How to test a merge without actually merging first
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You can also do git checkout --detach and test anything you want. Later, if you want to keep your changes, do git checkout -b new_branch. And if you want to throw your changes away, checkout any branch you want (git checkout master).
– Shayan To...
What's the best way to set a single pixel in an HTML5 canvas?
...ba("+r+","+g+","+b+","+(a/255)+")";
ctx.fillRect( x, y, 1, 1 );
You can test the speed of these here: http://jsperf.com/setting-canvas-pixel/9 or here https://www.measurethat.net/Benchmarks/Show/1664/1
I recommend testing against browsers you care about for maximum speed. As of July 2017, fillR...
Really Cheap Command-Line Option Parsing in Ruby
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+1 for Trollop. I use it for my test automation system and it Just Works. Plus it's so easy to code with that sometimes I rearrange my banner just to experience the joy of it.
– kinofrost
Jul 19 '11 at 8:24
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How do you use variables in a simple PostgreSQL script?
... get the last insert id:
DO $$
DECLARE lastid bigint;
BEGIN
INSERT INTO test (name) VALUES ('Test Name')
RETURNING id INTO lastid;
SELECT * FROM test WHERE id = lastid;
END $$;
share
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imp...
Efficiency of Java “Double Brace Initialization”?
...was shelved indefinitely.
Experiment
Here's the simple experiment I've tested -- make 1000 ArrayLists with the elements "Hello" and "World!" added to them via the add method, using the two methods:
Method 1: Double Brace Initialization
List<String> l = new ArrayList<String>() {{
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Most efficient way to create a zero filled JavaScript array?
...) is painfully slow. (arr = []).length = len; arr.fill(0); is about the fastest solution ive seen anywhere... or at least tied
– Pimp Trizkit
Sep 22 '15 at 16:08
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