大约有 19,601 项符合查询结果（耗时：0.0245秒） [XML]
In PHP what does it mean by a function being binary-safe?
...ytes and/or null bytes).
For example, a non-binary-safe function might be based on a C function which expects null-terminated strings, so if the string contains a null character, the function would ignore anything after it.
This is relevant because PHP does not cleanly separate string and binary d...
How to handle click event in Button Column in Datagridview?
...need to distinguish between multiple buttons per grid, you can then select based on the column name or index, but that shouldn't be your first check. Always make sure a button was clicked first and then handle anything else appropriately. In most cases where you only have a single button per grid,...
How can I combine flexbox and vertical scroll in a full-height app?
...
The current spec says this regarding flex: 1 1 auto:
Sizes the item based on the width/height properties, but makes
them fully flexible, so that they absorb any free space along the main
axis. If all items are either flex: auto, flex: initial, or flex:
none, any positive free space afte...
What is the difference between ndarray and array in numpy?
...t says false. but with np.ndarrray() when you specify the order it creates based on the order provided.
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MongoDB vs. Cassandra [closed]
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Lots of reads in every query, fewer regular writes
Both databases perform well on reads where the hot data set fits in memory. Both also emphasize join-less data models (and encourage denormalization instead), and both provide indexes on documents or rows, although MongoDB's indexes ...
What's the recommended approach to resetting migration history using Django South?
...to consume quite a bit of time in my unit tests. I would like to reset the baseline and start a fresh set of migrations. I've reviewed the South documentation , done the usual Google/Stackoverflow searching (e.g. "django south (reset OR delete OR remove) migration history") and haven't found anythi...
Code coverage with Mocha
...ll it in your project with
npm i nyc --save-dev
Then, if you have a npm based project, just change the test script inside the scripts object of your package.json file to execute code coverage of your mocha tests:
{
"scripts": {
"test": "nyc --reporter=text mocha"
}
}
Run
Now run your ...
Is a Python dictionary an example of a hash table?
...
Yes. Internally it is implemented as open hashing based on a primitive polynomial over Z/2 (source).
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What is the difference between a .xib file and a .storyboard?
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Yes, you can still create a Window-based application for iOS 5. If you use the "empty project" template, you will see that a window is created for you in the app delegate. From there you can add XIB files as normal, or a new storyboard.
I'm assuming you mean ...
How does this checkbox recaptcha work and how can I use it?
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Google reCAPTCHA: Introducing the new reCAPTCHA!
This is a JavaScript based CAPTCHA.
Since most spambots do not execute JavaScript and can not identify the correlation between the displayed text and the DOM or required actions they can not click on the checkbox.
Please note that there is no che...