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Jackson and generic type reference
...erasure: T is just a type variable, and you must indicate actual class, usually as Class argument. Without such information, best that can be done is to use bounds; and plain T is roughly same as 'T extends Object'. And Jackson will then bind JSON Objects as Maps.
In this case, tester method needs ...
Why does Internet Explorer not send HTTP post body on Ajax call after failure?
...en a new connection. This can have a significant performance impact, especially on high latency networks.
The issue is triggered easily if Ajax requests are made in rapid succession. For example, we make Ajax requests every 100ms and then the network status changes, the error is easy to reproduce. A...
What's the difference between findAndModify and update in MongoDB?
...you will get back a different item than what you updated.
Doing it "atomically" means you are guaranteed that you are getting back the exact same item you are updating - i.e. no other operation can happen in between.
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Argparse: Way to include default values in '--help'?
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@mqsoh multiple inheritance actually just worked, but unfortunately is not public API: stackoverflow.com/a/52025430/895245
– Ciro Santilli 郝海东冠状病六四事件法轮功
Aug 26 '18 at 10:41
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...集。
例2.3
sets:
product/A B/;
machine/M N/;
week/1..2/;
allowed(product,machine,week):x;
endsets
LINGO生成了三个父集的所有组合共八组作为allowed集的成员。列表如下：
编号 成员
1 (A,M,1)
2 2 (A,M,2...
Apply CSS styles to an element depending on its child elements
... div, based on its child contents and then apply a CSS class to the parent all in one line.
If you use jQuery, something along the lines of this would may work (untested but the theory is there):
$('div:has(div.a)').css('border', '1px solid red');
or
$('div:has(div.a)').addClass('redBorder');
...
Modify file in place (same dest) using Gulp.js and a globbing pattern
...ers1311407 has led on. You don't need to specify the destination folder at all, simply use .. Also, be sure to set the base directory.
gulp.src("sass/**/*.scss", { base: "./" })
.pipe(sass())
.pipe(gulp.dest("."));
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What is the difference between the HashMap and Map objects in Java?
...She has something she needs to do with both things and moreThings, so naturally she puts that in a common method, and she uses the same type I used on getThings/getMoreThings when defining her method:
class SpecialFoo extends Foo {
private void doSomething(HashMap<String, Object> t) {
...
std::auto_ptr to std::unique_ptr
...As for other differences, unique_ptr can handle arrays correctly (it will call delete[], while auto_ptr will attempt to call delete.
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How to make the 'cut' command treat same sequental delimiters as one?
... characters to tab. For example: I came here looking for a way to automatically export my display: who am i | tr -s ' ()' '\t' | cut -f5
– Leo
Mar 28 '16 at 23:24
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