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Differences in boolean operators: & vs && and | vs ||
...e are the bitwise AND and bitwise OR operators.
int a = 6; // 110
int b = 4; // 100
// Bitwise AND
int c = a & b;
// 110
// & 100
// -----
// 100
// Bitwise OR
int d = a | b;
// 110
// | 100
// -----
// 110
System.out.println(c); // 4
System.out.println(d); // 6
Thanks to...
How do I delete a local repository in git? [duplicate]
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4 Answers
4
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PDO mysql: How to know if insert was successful
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140
PDOStatement->execute() returns true on success. There is also PDOStatement->errorCode() ...
Swift performSelector:withObject:afterDelay: is unavailable [duplicate]
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Swift 4
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
// your function here
}
Swift 3
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(0.1)) {
// your function here
}
Swift 2
let dispatchTime: disp...
Use Visual Studio web.config transform for debugging [duplicate]
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94
OK, with the understanding that web.debug.config & web.release.config are for package/publis...
Codesign error: Provisioning profile cannot be found after deleting expired profile
...to the provisioning profiles will look like this:
PROVISIONING_PROFILE = "487F3EAC-05FB-4A2A-9EA0-31F1F35760EB";
"PROVISIONING_PROFILE[sdk=iphoneos*]" = "487F3EAC-05FB-4A2A-9EA0-31F1F35760EB";
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What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]
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edited Feb 24 '14 at 3:03
community wiki
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How do I move the turtle in LOGO? [closed]
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234
votes
// MOVE FORWARD
FD 75
// TURN RIGHT
RT 54
// TURN LEFT
LT 21
// MOVE BACKWARD...
How to get the caller's method name in the called method?
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243
inspect.getframeinfo and other related functions in inspect can help:
>>> import insp...
App Inventor 2 矩阵块 · App Inventor 2 中文网
...—创建一个 2×2 矩阵，取出第 2 行第 1 列的值（结果是 4）：
22314121
文档里的块图都可以用右上角的”复制代码块”按钮复制，再到代码块编辑器里按 Ctrl+V 直接粘贴成真块。想系统练手，跟着用矩阵管理成绩表案例走一遍。
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