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Dynamic type languages versus static type languages

...mpiler can use this. If we in Java do "string" + "string" or 3 + 3, both + tokens in text in the end represent a completely different operation and datum, the compiler knows which to choose from the types alone. Now, I'm going to make a very controversial statement here but bear with me: 'dynamic ty...
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ReactJS: Modeling Bi-Directional Infinite Scrolling

...ay of all children. Since we do not render them, it's really cheap to just allocate them and discard them. If 10k allocations is too big, you can instead pass a function that takes a range and return the elements. <List> {thousandelements.map(function() { return <Element /> })} </L...
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What's the difference between array_merge and array + array?

... Source: https://softonsofa.com/php-array_merge-vs-array_replace-vs-plus-aka-union/ Stop using array_merge($defaults, $options): function foo(array $options) { $options += ['foo' => 'bar']; // ... } Note: array_replace function exists since PH...
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Explanation of JSONB introduced by PostgreSQL

...ut text, it will preserve semantically-insignificant white space between tokens, as well as the order of keys within JSON objects. Also, if a JSON object within the value contains the same key more than once, all the key/value pairs are kept. (The processing functions consider the last val...
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MySQL pagination without double-querying?

...(with the limit) and just filter the info through your back end script. In PHP for instance, you could do something like: if($queryResult > 0) { $counter = 0; foreach($queryResult AS $result) { if($counter >= $startAt AND $counter < $numOfRows) { //do what you want...
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Use of Finalize/Dispose method in C#

... that the resources have been disposed of and its ok to release the memory allocated for them. } } finally { // explicitly call the base class Dispose implementation base.Dispose( isDisposing ); this.IsDisposed = true; } } //TODO Uncomment this cod...
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Image fingerprint to compare similarity of many images

...should definitely take a look at phash. For image comparison there is this php project : https://github.com/kennethrapp/phasher And my little javascript clone: https://redaktor.me/phasher/demo_js/index.html Unfortunately this is "bitcount"-based but will recognize rotated images. Another approach in...
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Generate Java classes from .XSD files…?

...B API http://simple.sourceforge.net/download/stream/doc/tutorial/tutorial.php However, if you are really keen on learning JAXB, here's an excellent tutorial http://blogs.oracle.com/teera/entry/jaxb_for_simple_java_xml Contents of tutorial: JAXB for simple Java-XML serialization There're a number of...
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Reading ePub format

...e project fbreader, it also support iphone http://www.fbreader.org/about.php share | improve this answer | follow | ...
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What's the use/meaning of the @ character in variable names in C#?

...e. I believe this may be because of the familiarity of this requirement in PHP software for variables. And a lot of Open Source web systems are now coded in C# (where in the past it would have been PHP) – Wasted_Coder Mar 5 '16 at 19:36 ...