大约有 44,000 项符合查询结果（耗时：0.0714秒） [XML]
How to get the response of XMLHttpRequest?
...
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE) {
alert(xhr.responseText);
}
}
xhr.open('GET', 'http://example.com', true);
xhr.send(null);
For better crossbrowser compatibility, not only with IE6/7, but also to cove...
How do I use a custom Serializer with Jackson?
...
As mentioned, @JsonValue is a good way. But if you don't mind a custom serializer, there's no need to write one for Item but rather one for User -- if so, it'd be as simple as:
public void serialize(Item value, JsonGenerator jgen,
SerializerProvider provider) thro...
How to turn on/off ReactJS 'development mode'?
...ention to toggle dev time helpers off during production. Just using the minified react will leave all those potential optimizations on the table as well.
Ultimately the magic comes down to React embedding references to process.env.NODE_ENV throughout the codebase; these act like a feature toggle.
if...
Format bytes to kilobytes, megabytes, gigabytes
...
If you used $bytes /= (1 << (10 * $pow)) or the like, I could like it better. :-P
– Chris Jester-Young
Mar 24 '10 at 18:46
...
Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
...
You can get this type of error if your class' .m file is not listed under the "Compile Sources" step of the "Build Phases" tab of your target. Normally Xcode does this for you, but sometimes it loses the plot and you need to add the .m file manually.
To d...
How can I multiply all items in a list together with Python?
...ordsforthewise without the third argument, it throws a TypeError exception if you pass it an empty sequence
– Francisco Couzo
Jul 11 '16 at 3:41
1
...
Java - JPA - @Version annotation
...ENTITY SET ..., VERSION = VERSION + 1 WHERE ((ID = ?) AND (VERSION = ?))
If the WHERE clause fails to match a record (because the same entity has already been updated by another thread), then the persistence provider will throw an OptimisticLockException.
Does it mean that we should declare ou...
✔ Checkmark selected row in UITableViewCell
...
What if I want only the checkmark and want to deselect the row after a selection?
– gyozo kudor
Jan 8 '15 at 8:59
...
Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
I'm curious as to whether or not there is a real difference between the money datatype and something like decimal(19,4) (which is what money uses internally, I believe).
...
Error message 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions prop
...well, that's fine when you are debugging from Visual Studio. But how about if you're web application only throw this error on the production server? even after you set the Copy Local attribute to true.
– Yousi
Oct 16 '14 at 4:47
...