or
or
By clicking below, you agree to our terms of service.
Sign in with Wallet
New to HackMD? Sign up
| Syntax | Example | Reference | |
|---|---|---|---|
| # Header | Header | 基本排版 | |
| - Unordered List |
|
||
| 1. Ordered List |
|
||
| - [ ] Todo List |
|
||
| > Blockquote | Blockquote |
||
| **Bold font** | Bold font | ||
| *Italics font* | Italics font | ||
| ~~Strikethrough~~ | |||
| 19^th^ | 19th | ||
| H~2~O | H2O | ||
| ++Inserted text++ | Inserted text | ||
| ==Marked text== | Marked text | ||
| [link text](https:// "title") | Link | ||
|  | Image | ||
| `Code` | Code |
在筆記中貼入程式碼 | |
| ```javascript var i = 0; ``` |
|
||
| :smile: |  |
Emoji list | |
| {%youtube youtube_id %} | Externals | ||
| $L^aT_eX$ | LaTeX | ||
| :::info This is a alert area. ::: |
This is a alert area. |
On a scale of 0-10, how likely is it that you would recommend HackMD to your friends, family or business associates?
Please give us some advice and help us improve HackMD.
Syncing
xxxxxxxxxx-
Any changes
Be notified of any changes
-
Mention me
Be notified of mention me
-
Unsubscribe
SubscribeThe productivity brought by Clojure - Laurence Chen
tags:
COSCUP2020中階TR313歡迎來到 https://hackmd.io/@coscup/2020 共筆
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →點擊本頁上方的 開始用 Markdown 一起寫筆記！
手機版請點選上方 按鈕展開議程列表。
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →哪些理由：lisp & REPL
java
web assembly
s-expression
M-xpression
REPL-driven development
簡報
因為都是括號，所以他可以找到頭跟尾
基本上是 test driven
最小單元測試
快速找出時間長度
js 的範例
呼叫 time 函式庫
非常多的括號問題
semantic editing and editor integration
prductivity 增加 30%
ＱＡ time
以一個 function 做編譯，是其他REPL-driven做不到的
_.cloneDeep() 相關的用法
沒有他的話在 multi-thread 是會有使用上的問題
Clojure immutable data structure: copy on write
改到的部分生成新的 node，就的則使用 reference
比較減省 memory
有些function 定義在 array or map
sequences operation -> 操作各種 map filter, reduct, first,rest…
而他是一個 linked list
其他語言有不一致的相關 function name，人腦需要記憶時會覺得很痛苦無法記錄下來
講者認為資料庫是一個系統的核心
平常的系統要若不喜歡可以直切街換，但是資料庫卻還是需要 migrate
temporal database queries 的問題
PostgreSQL has temporal_tables