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Difference between DOM parentNode and parentElement

... possible terms, what is the difference between classical DOM parentNode and newly introduced in Firefox 9 parentElement ...
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Understanding the Gemfile.lock file

After running the bundle install command, 'Gemfile.lock ' is created in the working directory. What do the directives inside that file mean? ...
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input type=“text” vs input type=“search” in HTML5

...m working with form input fields, especially <input type="text" /> and <input type="search" /> IMO there wasn't any difference in all major browser including Safari, Chrome, Firefox and Opera. And the search field also behaves like a regular text field. ...
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Why is Magento so slow? [closed]

...g, layout config, etc.) that involve building up giant XML trees in memory and then "querying" those same trees for information. This takes both memory (storing the trees) and CPU (parsing the trees). Some of these (especially the layout tree) are huge. Also, unless caching is on, these tree are ...
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How to get an object's properties in JavaScript / jQuery?

... You can look up an object's keys and values by either invoking JavaScript's native for in loop: var obj = { foo: 'bar', base: 'ball' }; for(var key in obj) { alert('key: ' + key + '\n' + 'value: ' + obj[key]); } or using jQuery's .each()...
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How to configure static content cache per folder and extension in IIS7?

...ned mostly from the IIS.NET config reference site: iis.net/ConfigReference and from poking about the %systemroot%\system32\inetsrv\config\applicationhost.config file and related friends. – Kev Nov 9 '11 at 18:11 ...
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How do you track record relations in NoSQL?

I am trying to figure out the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal we...
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Default value of function parameter

... If you put the declaration in a header file, and the definition in a separate .cpp file, and #include the header from a different .cpp file, you will be able to see the difference. Specifically, suppose: lib.h int Add(int a, int b); lib.cpp int Add(int a, int b = ...
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Generate random integers between 0 and 9

How can I generate random integers between 0 and 9 (inclusive) in Python? 19 Answers 1...
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Input and output numpy arrays to h5py

...d A . How do I save it to an h5py file? Also, how do I read the same file and put it as a numpy array in a different code, as I need to do manipulations with the array? ...