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Understanding Magento Block and Block Type
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The A is a module's alias. In this case page is short for Mage_Page_Block (it is defined in app/code/core/Mage/Page/etc/config.xml if you want to see).
The B is the class name relative to the alias, initial letters of each word are capitalised. In this case html becomes Html and is appended ...
How to make Twitter Bootstrap menu dropdown on hover rather than click
I'd like to have my Bootstrap menu automatically drop down on hover, rather than having to click the menu title. I'd also like to lose the little arrows next to the menu titles.
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Is it possible to forward-declare a function in Python?
Is it possible to forward-declare a function in Python? I want to sort a list using my own cmp function before it is declared.
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Check folder size in Bash
...cript that will calculate a directory size and if the size is less than 10GB, and greater then 2GB do some action. Where do I need to mention my folder name?
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How to print a number with commas as thousands separators in JavaScript
...t with commas as thousands separators. For example, I want to show the number 1234567 as "1,234,567". How would I go about doing this?
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How do I check if an object has a specific property in JavaScript?
How do I check if an object has a specific property in JavaScript?
24 Answers
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What does value & 0xff do in Java?
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It sets result to the (unsigned) value resulting from putting the 8 bits of value in the lowest 8 bits of result.
The reason something like this is necessary is that byte is a signed type in Java. If you just wrote:
int result = value;
then result would end up with the value ff ff ff fe i...
Git clone particular version of remote repository
I cloned a remote git repository about a month ago. The remote repository has undergone many changes and has now become unstable. Now I need another copy of the repository, version identical to the one I cloned a month ago.
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How to change the output color of echo in Linux
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You can use these ANSI escape codes:
Black 0;30 Dark Gray 1;30
Red 0;31 Light Red 1;31
Green 0;32 Light Green 1;32
Brown/Orange 0;33 Yellow 1;33
Blue 0;34 Light Blue 1;34
Purple 0;35 ...
总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...切了然于心时使用。
以下内容来自CSDN博客：http://blog.csdn.net/zjl_1026_2001/archive/2008/04/03/2246510.aspx
static_cast和reinterpret_cast揭秘
本文讨论static_cast<> 和 reinterpret_cast<>。
reinterpret_cast可以转换任意一个32bit整数，包括所有的...