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The tilde operator in Python
...o so before supplying an __invert__ method to your class. (Note that byte-strings [ex: '\xff'] do not support this operator, even though it is meaningful to invert all the bits of a byte-string.)
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How do you express binary literals in Python?
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This is interesting for when you have strings, but if working with pure numbers, you add unnecessary computations to the code.
– Daniel Möller
Aug 18 '17 at 17:34
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Databinding an enum property to a ComboBox in WPF
...ption = GetDescription(enumValue)
}).ToArray();
}
private string GetDescription(object enumValue)
{
var descriptionAttribute = EnumType
.GetField(enumValue.ToString())
.GetCustomAttributes(typeof (DescriptionAttribute), false)
.FirstOrDefault() as D...
check android application is in foreground or not? [duplicate]
...ses();
if (appProcesses == null) {
return false;
}
final String packageName = context.getPackageName();
for (RunningAppProcessInfo appProcess : appProcesses) {
if (appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND && appProcess.processName.equal...
erb, haml or slim: which one do you suggest? And why? [closed]
...as erb only returns the last line in the block. so you have to append to a string and then return that.
HAML
Pros
more concise. no closing tags, fits in smaller screens
visually cleaner structure
has built in helpers (haml_concat, haml_capture) to utilize haml in helper methods
class chaining...
实时开发、测试和调试工具 · App Inventor 2 中文网
... 你可以从计算机上的终端启动 adb。 转到包含 AppInventor Extras 软件的目录并运行命令 adb logcat
这将显示整个（大）系统日志。 如果你正在调试，则应该打开日志，再次模拟该错误，然后查看日志末尾出现的内容。
adb 的实际目...
What is __init__.py for?
...his mean: "this is done to prevent directories with a common name, such as string, from unintentionally hiding valid modules that occur later on the module search path"?
– Carl G
Jan 25 '14 at 4:43
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Why does ++[[]][+[]]+[+[]] return the string “10”?
This is valid and returns the string "10" in JavaScript ( more examples here ):
9 Answers
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Error when changing to master branch: my local changes would be overwritten by checkout
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Your options, as I see it, are - commit, and then amend this commit with extra changes (you can modify commits in git, as long as they're not pushed); or - use stash:
git stash save your-file-name
git checkout master
# do whatever you had to do with master
git checkout staging
git stash pop
git...
python: how to identify if a variable is an array or a scalar
... While this is a great answer, collections.Sequence is an ABC for string as well, so that should be taken into account. I'm using something like if type(x) is not str and isinstance(x, collections.Sequence):. This isn't great, but it is reliable.
– bbenne10
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