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JavaScript checking for null vs. undefined and difference between == and ===
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123
To distill TJ's answer, === means value AND type are the same.
– Slappy
Feb 24 '11 at 8:48
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Post an empty body to REST API via HttpClient
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123
Use StringContent or ObjectContent which derive from HttpContent or you can use null as HttpCo...
Is there a way to do method overloading in TypeScript?
...ingParameter: "string for v#1" });
testClass.someMethod({ numberParameter: 12345, stringParameter: "string for v#2" });
Because overloading provided in TypeScript is, as mentioned in others' comments, just a list of function's different signatures without supporting corresponding implementation co...
[精华]VC++对话框程序打印及打印预览的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...view)
CView::OnFilePrint 和CView::OnFilePrintPreview函数都进行打印操作，但View::OnFilePrint将实际发送到打印机，而CView::OnFilePrintPreview则将输出发送到程序窗口上方显示的预览窗口显示一个或两个打印页面的复制外观。利用上面加入的缺省...
为什么说自媒体到了最危险的时期？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...表等，都是个人生产内容和品牌运营。只有极少数是团队操作，比如专注于智能硬件的国仁的智东西团队。个人生产的好处就是可以保持作品一贯的调性，但是一个人坚持出东西是一件很困难的事情，罗辑思维的罗振宇每天6点...
“Insert if not exists” statement in SQLite
...nstraint:
INSERT OR IGNORE INTO bookmarks(users_id, lessoninfo_id) VALUES(123, 456)
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Why is the asterisk before the variable name, rather than after the type?
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123
If you look at it another way, *myVariable is of type int, which makes some sense.
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Avoid trailing zeroes in printf()
...}
}
If you're not happy with the truncation aspect (which would turn 0.12399 into 0.123 rather than rounding it to 0.124), you can actually use the rounding facilities already provided by printf. You just need to analyse the number before-hand to dynamically create the widths, then use those to ...
differences in application/json and application/x-www-form-urlencoded
...rk with JSON bodies by default.
{
"id": 1,
"name": "Foo",
"price": 123,
"tags": [
"Bar",
"Eek"
],
"stock": {
"warehouse": 300,
"retail": 20
}
}
"application/json" Content-Type is one of the Preflighted requests.
Now, if the request isn't simple request, the bro...
Change default global installation directory for node.js modules in Windows?
... edited May 20 at 14:09
gls123
4,89922 gold badges2424 silver badges2626 bronze badges
answered Jan 19 '15 at 17:05
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