大约有 40,000 项符合查询结果（耗时：0.0460秒） [XML]
Vim: What's the difference between let and set?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Converting NSString to NSDate (and back again)
...4, 17))
Goes like:
extension Date
{
public static func FromString(_ dateString: String) -> Date?
{
// Date detector.
let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.date.rawValue)
// Enumerate matches.
var matchedDate: Date...
MySQL remove all whitespaces from the entire column
...ring.
– Michael Mior
Sep 6 '11 at 0:32
That works :) Although it obviously only removes spaces and not tabs or newline...
Bogus foreign key constraint fail
...neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_table_to_drop;
DROP TABLE my_second_table_to_drop;
SET FOREIGN_KEY_CHECKS=1;
Where the SET FOREIGN_KEY_CHECKS=1 serves as an extra security measure...
...
Calling method using JavaScript prototype
... and then calling it from the overriden method, like so
MyClass.prototype._do_base = MyClass.prototype.do;
MyClass.prototype.do = function(){
if (this.name === 'something'){
//do something new
}else{
return this._do_base();
}
};
...
Emacs bulk indent for Python
...he whole region to the right.
(defun my-python-tab-command (&optional _)
"If the region is active, shift to the right; otherwise, indent current line."
(interactive)
(if (not (region-active-p))
(indent-for-tab-command)
(let ((lo (min (region-beginning) (region-end)))
(...
How to set java_home on Windows 7?
..., one for user variables and one for system variables. Both were named JAVA_HOME and both pointing to
18 Answers
...
Find and extract a number from a string
...onstructor.
– Thomas
Jun 2 '15 at 8:32
1
Regex does a much better job.
– Ja...
How to play with Control.Monad.Writer in haskell?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
...
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