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Supabase 拓展：App 接入 Supabase 后端服务（Auth + PostgreSQL + Storage...
...入客户端）
2. 配置 Auth 组件
在设计器中拖入 SupabaseAuth，设置属性：
ProjectUrl：填入 Project URL
PublishableKey：填入 anon public key
3. 使用功能组件
拖入 SupabasePgSQL / SupabaseStorage / SupabaseFunction...
What's the status of multicore programming in Haskell?
...el Haskell
Google published their experience report on the use of Haskell (PDF)
Intel announced the Concurrent Collections for Haskell library, including scalability numbers -- scaling results for 32 and 48 cores
Sun/Oracle bought us a machine and funded work on improving parallel performance.
Recen...
STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...>中则定义了一些模板类，用来声明函数对象
注意:
编译器无法检测出所传递的迭代器是一个无效形式的迭代器,当然也无法给出算法函数错误的提示,因为迭代器并不是真实的类别,它只是传递给函数模板的一种参数格式而已
STL...
How to fix the aspect ratio in ggplot?
...unding box.
(I also suggest you use ggsave to save your resulting plot to pdf/png/etc, rather than the pdf(); print(p); dev.off() sequence.)
library(ggplot2)
df <- data.frame(
x = runif(100, 0, 5),
y = runif(100, 0, 5))
ggplot(df, aes(x=x, y=y)) + geom_point() + coord_fixed()
...
二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...学的人一同学习之。
关于QR Code Specification，可参看这个PDF：http://raidenii.net/files/datasheets/misc/qr_code.pdf
基础知识
首先，我们先说一下二维码一共有40个尺寸。官方叫版本Version。Version 1是21 x 21的矩阵，Version 2是 25 x 25的矩阵，Ver...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
...er guesses:
likelihood_of_red = stats.norm(red_mean_guess, red_std_guess).pdf(both_colours)
likelihood_of_blue = stats.norm(blue_mean_guess, blue_std_guess).pdf(both_colours)
Here, we have simply put each data point into the probability density function for a normal distribution using our current...
Folder structure for a Node.js project
...ets, client-side JavaScript)
/assets/images contains image files
/assets/pdf contains static pdf files
/css contains style sheets (or compiled output by a css engine)
/js contains client side JavaScript
/controllers contain all your express routes, separated by module/area of your application (no...
淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...我们选择了每分钟15000转的SAS硬盘，按照一个节点两台机器来计算，单位数据的存储成本约为4.5W/TB。相对应地，“冷数据”我们选择了每分钟7500转的SATA硬盘，单碟上能够存放更多的数据，存储成本约为1.6W/TB。
将冷热数据进行...
What is the “assert” function?
...ndard draft
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf
19.3 Assertions
1 The header <cassert>, described in (Table 42), provides a macro for documenting C ++ program assertions
and a mechanism for disabling the assertion checks.
2 The contents are the same a...
How do I put two increment statements in a C++ 'for' loop?
... Ok. From open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2857.pdf section 6.5.3 the last part is an "expression". (Although 1.6 #2 defines an "expression-list" as a "list of expressions separated by commas", this construct does not appear in 6.5.3.). This means that when we write "++i,+...