大约有 47,000 项符合查询结果（耗时：0.0528秒） [XML]
Byte[] to InputStream or OutputStream
...se table, for which I have to use byte[] in my Java program as a mapping and to use this data I have to convert it to InputStream or OutputStream . But I don't know what happens internally when I do so. Can anyone briefly explain me what's happening when I do this conversion?
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Javascript web app and Java server, build all in Maven or use Grunt for web app?
We are doing a web application with AngularJS and we like the idea of using Bower for Dependency Management and Grunt for building, running tests etc. ( Yeoman )
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HTTP 1.0 vs 1.1
...ould somebody give me a brief overview of the differences between HTTP 1.0 and HTTP 1.1? I've spent some time with both of the RFCs, but haven't been able to pull out a lot of difference between them. Wikipedia says this:
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Difference between GeoJSON and TopoJSON
What is the difference between GeoJSON and TopoJSON and when would I use one over the other?
3 Answers
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Handling optional parameters in javascript
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You can know how many arguments were passed to your function and you can check if your second argument is a function or not:
function getData (id, parameters, callback) {
if (arguments.length == 2) { // if only two arguments were supplied
if (Object.prototype.toString.call(param...
How can I determine if a String is non-null and not only whitespace in Groovy?
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and what if foo = null ?
– Bertl
Sep 1 at 10:54
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Does Python support multithreading? Can it speed up execution time?
...n threads in parallel.
This only applies to Python code. C extensions can and do release the GIL to allow multiple threads of C code and one Python thread to run across multiple cores. This extends to I/O controlled by the kernel, such as select() calls for socket reads and writes, making Python ha...
Find and replace - Add carriage return OR Newline
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Make sure "Use: Regular expressions" is selected in the Find and Replace dialog:
Note that for Visual Studio 2010, this doesn't work in the Visual Studio Productivity Power Tools' "Quick Find" extension (as of the July 2011 update); instead, you'll need to use the full Find and Repl...
In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...ed in favor of the value from the form’s initial data.
With Django 1.8 and earlier, to disable entry on the widget and prevent malicious POST hacks you must scrub the input in addition to setting the readonly attribute on the form field:
class ItemForm(ModelForm):
def __init__(self, *args, ...
Is the “struct hack” technically undefined behavior?
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It's not clear if it's legal or portable, but it is rather popular.
and:
... an official interpretation has deemed that it is not strictly conforming with the C Standard, although it does seem to work under all known implementations. (Compilers which check array bounds carefully might iss...