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Removing whitespace from strings in Java
... and st.replaceAll("\\s","") produce the same result.
The second regex is 20% faster than the first one, but as the number consecutive spaces increases, the first one performs better than the second one.
Assign the value to a variable, if not used directly:
st = st.replaceAll("\\s+","")
...
jQuery hasClass() - check for more than one class
...t ran this in jsperf for Chrome 21.0.1180 and the is() method is now about 20% faster. But the hasClass() seems more readable.
– Danyal Aytekin
Sep 27 '12 at 12:27
3
...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...se steps over percentage because it's more intuitive for me.
For example, 20% of a 200 blue value is much different than 20% of a 40 blue value.
Anyways, here's my modification, thanks for your original function.
function adjustBrightness(col, amt) {
var usePound = false;
if (col[0] == ...
How to convert numbers between hexadecimal and decimal
...ode that illustrates that idea. My performance tests showed that it can be 20%-40% faster than Convert.ToInt32(...):
class TableConvert
{
static sbyte[] unhex_table =
{ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-...
VS Addin插件配置、部署 - C/C++ - 清泛网 - 专注C/C++及内核技术
...置的路径是工程bin目录下dll的绝对路径,这样便于开发者调试。实际部署最好使用相对路径,然后把dll拷到Addins目录下。
工程目录下也有一个接口文件,里面的路径是相对路径,实际部署可以把这个文件和dll文件一起拷到VS...
VS2012警告未能加载包“Visual C++ package” - C/C++ - 清泛网 - 专注C/C++及内核技术
...
安装过程如图:
安装完后可以打开项目了,不过发现调试F5不能用了,是灰色的,重新启动下VS2012即可恢复正常。
VS2012 C++
c++ 写日志通用类,可设置日志级别 - C/C++ - 清泛网 - 专注C/C++及内核技术
... LOGGER_LEVEL_NAME[] = {"崩溃", "错误", "警告", "信息", "详细", "调试"};
static const char * const LOGGER_LEVEL_CODE[] = {"FATAL", "ERROR", "WARN ", "INFO ", "VERBOSE", "DEBUG"};
#define logging(nLevel, x, ...) \
Log(nLevel, __FUNCTION__, __LINE__, (x), __VA_ARGS__)
#define LOG...
小端模式 和 大端模式的决定因素 - C/C++ - 清泛网 - 专注C/C++及内核技术
...很早以前也是这么认为的,但是经过一系列的跨平台代码调试后,发现同一台PC上Windows和Linux的端序是相同的,不得不引发重新考虑:
小端模式 和 大端模式:几乎是由CPU决定的,而非OS或编译器。Java内存序及网络序均是大端。...
APP INVENTOR硬件交互学习教程01——开发板介绍 - 创客硬件开发 - 清泛IT社...
今天,介绍一个用于学习APP INVENTOR 硬件交互学习板,它资源丰富,外设较多,非常有利于学习APP inventor。
等待焊接的板子们
已焊接等待调试的
系统板原理图
自己造的板子{:8_389:}{:8_315:}
最大装载数不显示计算数值 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!
...每一步看一下变量的值,这样便于一步步跟踪问题。更多调试方法请参考这里:https://www.fun123.cn/reference/creative/debug.html