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partial string formatting
...ring.Template('${x} ${y}')
try:
template.substitute({'x':1}) # raises KeyError
except KeyError:
pass
# but the following raises no error
partial_str = template.safe_substitute({'x':1}) # no error
# partial_str now contains a string with partial substitution
partial_template = string.Template(p...
Readonly Properties in Objective-C?
... and therefore using the dot notation to set a value fails with a compiler error. The dot notation fails because the compiler stops you from calling a method (the setter) that does not exist.
The simplest way around this is to directly access the member variable, named with the underscore. You can ...
Regex to validate password strength
...n results.map { nsString.substringWithRange($0.range)}
} catch let error as NSError {
print("invalid regex: \(error.localizedDescription)")
return []
}
}
}
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Meaning of 'const' last in a function declaration of a class?
...ethod declaration in the above example to the code below you will get some errors.
void Foo()
{
counter++; //this works
std::cout << "Foo" << std::endl;
}
void Foo() const
{
counter++; //this will not compile
std::cout << "F...
Injecting a mock into an AngularJS service
...ide calls must be made before using $injector otherwise, you'll receive an error: Injector already created, can not register a module!
– providencemac
Mar 25 '15 at 20:33
7
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How to convert a Base64 string into a Bitmap image to show it in a ImageView?
... and came up to this solution!
Note:
If you are still getting bad-base64 error consider other Base64.decode flags like Base64.URL_SAFE and so on
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Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...这些信息来决定，你是让make继续执行，还是停止。
$(error <text ...> )
产生一个致命的错误，<text ...>是错误信息。注意，error函数不会在一被使用就会产生错误信息，所以如果你把其定义在某个变量中，并在后续的脚本中使用...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...这些信息来决定，你是让make继续执行，还是停止。
$(error <text ...> )
产生一个致命的错误，<text ...>是错误信息。注意，error函数不会在一被使用就会产生错误信息，所以如果你把其定义在某个变量中，并在后续的脚本中使用...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...这些信息来决定，你是让make继续执行，还是停止。
$(error <text ...> )
产生一个致命的错误，<text ...>是错误信息。注意，error函数不会在一被使用就会产生错误信息，所以如果你把其定义在某个变量中，并在后续的脚本中使用...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...这些信息来决定，你是让make继续执行，还是停止。
$(error <text ...> )
产生一个致命的错误，<text ...>是错误信息。注意，error函数不会在一被使用就会产生错误信息，所以如果你把其定义在某个变量中，并在后续的脚本中使用...