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How can I create a two dimensional array in JavaScript?
...
var items = [
[1, 2],
[3, 4],
[5, 6]
];
console.log(items[0][0]); // 1
console.log(items[0][1]); // 2
console.log(items[1][0]); // 3
console.log(items[1][1]); // 4
console.log(items);
...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...nt(const char *format,...) __attribute__((format(printf,1,2)));
//m=2；n=3
extern void myprint(int l，const char *format,...)
__attribute__((format(printf,2,3)));
需要特别注意的是，如果myprint是一个函数的成员函数，那么m和n的值可有点“悬乎”了，例如：
//...
How to prevent http file caching in Apache httpd (MAMP)
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321
+50
Tried t...
How can I multiply and divide using only bit shifting and adding?
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answered May 5 '10 at 22:31
Andrew ToulouseAndrew Toulouse
1,09311 gold badge99 silver badges1010 bronze badges
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Count occurrences of a char in plain text file
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answered Oct 21 '09 at 21:37
CascabelCascabel
398k6464 gold badges352352 silver badges307307 bronze badges
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Clear Text Selection with JavaScript
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answered Jul 3 '10 at 0:46
Gert GrenanderGert Grenander
15.7k66 gold badges3535 silver badges4343 bronze badges
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Copy all files with a certain extension from all subdirectories
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edited Jun 4 '15 at 8:23
answered Mar 25 '13 at 14:10
Br...
How to change maven logging level to display only warning and errors?
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-X for debug
-q for only error
Maven logging config file
Currently maven 3.1.x uses SLF4J to log to the System.out .
You can modify the logging settings at the file:
${MAVEN_HOME}/conf/logging/simplelogger.properties
According to the page : http://maven.apache.org/maven-logging.html
Command line ...
How to detect user inactivity in Android
...vity extends Activity {
public static final long DISCONNECT_TIMEOUT = 300000; // 5 min = 5 * 60 * 1000 ms
private static Handler disconnectHandler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
// todo
r...
map vs. hash_map in C++
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134
They are implemented in very different ways.
hash_map (unordered_map in TR1 and Boost; use tho...