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Does Typescript support the ?. operator? (And, what's it called?)
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Edit Nov. 13, 2019!
As of November 5, 2019 TypeScript 3.7 has shipped and it now supports ?. the optional chaining operator ????????????????????!!!
https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#optional-c...
GitHub: What is a “wip” branch?
...t https://ben.straub.cc/2015/04/02/wip-pull-request/.
New Since Februrary 2019, GitHub offers draft pull requests, which make WIP more explicit: https://github.blog/2019-02-14-introducing-draft-pull-requests/
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总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...einterpret_cast:重新解释类型转换
const_cast:常量类型转换
专业的上面很多了,我说说我自己的理解吧:
synamic_cast一般用在父类和子类指针或应用的互相转化;
static_cast一般是普通数据类型(如int m=static_cast<int>(3.14));
reinterpret_cast...
ggplot2 legend to bottom and horizontal
...)+
guides(fill = guide_legend(label.position = "bottom"))
Created on 2019-12-07 by the reprex package (v0.3.0)
Edit: no need for these imperfect options anymore, but I'm leaving them here for reference.
Two imperfect options that don't give you exactly what you were asking for, but pretty ...
推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...而与浏览记录无关。然而它也会存在一些弊端，比如过度专业化(over-specialisation)的问题。这种方法会一直推荐给用户内容密切关联的item，而失去了推荐内容的多样性。
2.4 基于模型的算法
基于模型的方法有很多，用到的诸如机...
Use IntelliJ to generate class diagram
... Code Iris just stops my project to launch. Community version 2019.1.
– WesternGun
Oct 8 '19 at 13:21
@We...
What is output buffering?
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UPDATE 2019. If you have dedicated server and SSD or better NVM, 3.5GHZ. You shouldn't use buffering to make faster loaded website in 100ms-150ms.
Becouse network is slowly than proccesing script in the 2019 with performance server...
How to stop Visual Studio from opening a file on single click?
... Yes it seems they removed the button from Options menu in VS 2019.
– ワイきんぐ
Jun 18 '19 at 14:59
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Calc of max, or max of calc in CSS
...lly a max() and a min() function may be introduced to CSS, but as of April 2019 it is not part of the spec.
Here you can check for max() Browser compatibility:
https://developer.mozilla.org/en-US/docs/Web/CSS/max#Browser_compatibility.
Here is the draft of of the proposal:
https://drafts.csswg...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...4f, commit 32a6707, commit 440bf91, commit 0b408ca, commit 2eabd38 (28 Oct 2019), and commit 1bcef51, commit ecde49b (05 Oct 2019) by brian m. carlson (bk2204).
(Merged by Junio C Hamano -- gitster -- in commit 28014c1, 10 Nov 2019)
t/oid-info: add empty tree and empty blob values
Signed-...