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Tips for debugging .htaccess rewrite rules
...erefore don't have access to the root server configuration. They cannot avoid using .htaccess files for rewriting and cannot enable a RewriteLogLevel" as many respondents suggest. Also there are many .htaccess -specific pitfalls and constraints are aren't covered well. Setting up a local test...
Is it possible to make relative link to image in a markdown file in a gist?
... part varies per file (a quick experimentation confirms it is the git blob id). However you can drop that part resulting in a URL pointing to the latest version:
https://gist.github.com/user/605560c2961cb3025038/raw/img.png
or to take a working example:
https://gist.githubusercontent.com/cben/4...
Multiple controllers with AngularJS in single page app
...e controllers, just use multiple ngController directives:
<div class="widget" ng-controller="widgetController">
<p>Stuff here</p>
</div>
<div class="menu" ng-controller="menuController">
<p>Other stuff here</p>
</div>
You will need to have ...
What is the purpose of mock objects?
...s the cook returns the correct dish for each order.
Its harder to test a middle component, like the waiter, that utilizes the behavior of other components. A naive tester might test the waiter component the same way we tested the cook component:
cook <- waiter <- test driver
The test driv...
GDB corrupted stack frame - How to debug?
...he PC off the stack. In 32-bit x86 code you just do:
(gdb) set $pc = *(void **)$esp
(gdb) set $esp = $esp + 4
With 64-bit x86 code you need
(gdb) set $pc = *(void **)$rsp
(gdb) set $rsp = $rsp + 8
Then, you should be able to do a bt and figure out where the code really is.
The other 1% of th...
How to use concerns in Rails 4
...cept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them getting too fat and messy.
As an example, I'll put one well known pattern, the taggable pattern:
# app/models...
Understanding reference counting with Cocoa and Objective-C
...l retain explicitly, and then explicitly release it when you're done.
Consider the following (very contrived) bit of code, and you'll see a situation where autorelease is required:
- (NSString*)createHelloWorldString
{
NSString* s = [[NSString alloc] initWithString:@"Hello World"];
// Now...
Why does Math.round(0.49999999999999994) return 1?
...oblem
0.5+0.49999999999999994 is exactly 1 in double precision:
static void print(double d) {
System.out.printf("%016x\n", Double.doubleToLongBits(d));
}
public static void main(String args[]) {
double a = 0.5;
double b = 0.49999999999999994;
print(a); // 3fe0000000000000
...
How to copy text programmatically in my Android app?
I'm building an Android app and I want to copy the text value of an EditText widget. It's possible for the user to press Menu+A then Menu+C to copy the value, but how would I do this programmatically?
...
淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...带来了挑战。为此，我们设计了通用的数据中间层——glider——来屏蔽这个影响。glider以HTTP协议对外提供restful方式的接口。数据产品可以通过一个唯一的URL获取到它想要的数据。
以上是淘宝海量数据产品在技术架构方面的一...