大约有 47,000 项符合查询结果(耗时:0.0469秒) [XML]
Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
...ice.call(arguments)));
};
}
};
}
// Add ECMA262-5 string trim if not supported natively
//
if (!('trim' in String.prototype)) {
String.prototype.trim= function() {
return this.replace(/^\s+/, '').replace(/\s+$/, '');
};
}
// Add ECMA262-5 Array methods if no...
How do I parallelize a simple Python loop?
... output3.append(out3)
finish = time.time()
# these kinds of format strings are only available on Python 3.6:
# time to upgrade!
print(f'original inputs: {repr(output1)}')
print(f'total time to execute {sum(output2)} = sum({repr(output2)})')
print(f'time saved by parallelizing...
Property getters and setters
...s to 'get' the value before it can print it!
struct Person{
var name: String{
get{
print(name) // DON'T do this!!!!
return "as"
}
set{
}
}
}
let p1 = Person()
As that would give the following warning:
Attempting to access 'name...
Display filename before matching line
...the file name out in case of a single input file. By using /dev/null as an extra input file grep "thinks" it dealing with multiple files, but /dev/null is of course empty, so it will not show up in the match list..
– Scrutinizer
Mar 18 '13 at 8:44
...
Markdown `native` text alignment
...
For Markdown Extra you can use custom attributes:
# Example text {style=text-align:center}
When should you use constexpr capability in C++11?
... pi = 3.1415f;
// Haven't you always wanted to do this?
// constexpr std::string awesome = "oh yeah!!!";
// UPDATE: sadly std::string lacks a constexpr ctor
struct A
{
static const int four = 4;
static const int five = 5;
constexpr int six = 6;
};
int main()
{
&A::four; // linker ...
Sequelize.js delete query?
...or reference, this is defined in lib/model.js, and you don't have to use a string. You can use any sort of where object (e.g. {someId: 123}).
– Domi
Jun 16 '14 at 12:55
...
Finding duplicate values in MySQL
...
Superior to @levik's answer since it doesn't add an extra column. Makes it useful for use with IN()/NOT IN().
– wmassingham
Nov 24 '15 at 20:42
add a co...
NSUserDefaults - How to tell if a key exists
...l returning nil if the key doesn't exist.
func integerOptional(forKey: String) -> Int? {
return self.object(forKey: forKey) as? Int
}
/// Convenience method to wrap the built-in .double(forKey:) method in an optional returning nil if the key doesn't exist.
func doubleOptio...
NUnit Unit tests not showing in Test Explorer with Test Adapter installed
...
Extra +1 because this also fixed the issue with Code Coverage metrics disappearing.
– Aidanapword
May 15 '17 at 11:23
...
