大约有 47,000 项符合查询结果（耗时：0.0875秒） [XML]
Is it better to return null or empty collection?
...r it's IEnumerable or ICollection doesn't matter that much. Anyway, if you select something of type ICollection they also return null... I would like them to return an empty collection, but I ran into them returning null, so I thought I'd just mention it here. I would say the default of a collection...
Disable assertions in Python
...d allow assert statements to be optimized away is by raising them within a selection statement:
if foo_is_broken():
raise AssertionError('Foo is broken!')
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How to Copy Contents of One Canvas to Another Canvas Locally
... are building a website that uses lots of image/canvas operations.
// select canvas elements
var sourceCanvas = document.getElementById("some-unique-id");
var destCanvas = document.getElementsByClassName("some-class-selector")[0];
//copy canvas by DataUrl
var sourceImageData = ...
Placeholder Mixin SCSS/CSS
...nnested:
@mixin optional-at-root($sel) {
@at-root #{if(not &, $sel, selector-append(&, $sel))} {
@content;
}
}
@mixin placeholder {
@include optional-at-root('::-webkit-input-placeholder') {
@content;
}
@include optional-at-root(':-moz-placeholder') {
@content;
}
...
How can I benchmark JavaScript code? [closed]
...e the correct answer. I would delete mine, but I can't because it has been selected by the OP. There is much more to benchmarking than just running many iterations, and JSPerf takes care of that for you.
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Git/GitHub can't push to master
...ttp://github.com/my_user_name/my_repo you will see a textbox where you can select the git path to your repository. You'll want to use this!
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Suppress warning “Category is implementing a method which will also be implemented by its primary cl
...is answer should be the correct one. Anyway it has more votes than the one selected as answer.
– Juan Catalan
Nov 5 '14 at 17:28
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“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
... a file called create_tables.sql. Open it in a text editor.
In phpMyAdmin, select the phpmyadmin database and click on the "SQL" tab.
Copy/paste the entire text from create_tables.sql into the text box, and run the query.
Open the config.inc.php file in the phpMyAdmin install directory, and add the ...
How do I convert a String object into a Hash object?
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This answer should be selected for avoiding using eval.
– Michael_Zhang
Sep 4 '18 at 21:57
4
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Library not loaded: libmysqlclient.16.dylib error when trying to run 'rails server' on OS X 10.6 wit
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This should be the selected answer.
– El Guapo
Oct 2 '16 at 23:38
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