Agenda

1. Create react app
2. Install json-server
3. Create database file
4. Add npm scripts
5. Call the api from component via useEffect
6. Run

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Don’t worry, run these commands 🧙‍♂️

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# Undo the last git push
git push -f origin HEAD^:master


# Undo the last commit
git reset --soft HEAD^

git log

Rel: https://www.codegrepper.com/code-examples/shell/how+to+undo+last+push+in+github

When the local changes are pushed to the remote branch,

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git push origin <current-branch-name>

It can be done with;

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git push origin HEAD

// A handy way to push the current branch to the same name on the remote.

Ref: https://git-scm.com/docs/git-push

😵 The common error of typescript…

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🤸‍♀️ Make Type generic with Generic

Created a function which reaturns the last number from the array.

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const getLast = (arr: number[]) => {
  return arr[arr.length - 1];
};

const lastNumber = getLast([1, 2, 3]);
console.log(lastNumber); // 3

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🦄 Option 1: Create each function and use comma

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🚗 1. Create a project directory and move into it

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mkdir HogeConsoleApp
cd HogeConsoleApp

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screen.debug() returns some portion of the element while default DEBUG_PRINT_LIMIT is 7000.

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🏅 Fake API

• JSON Placeholder
  https://jsonplaceholder.typicode.com/

• REQ|RES
  https://reqres.in/

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Settings | Editor | Code Style | HTML | Other => In empty tag

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1. Create a directory

e.g. Create Screenshots directory on Desktop

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cd ~/Desktop
mkdir Screenshots

2. Set the directory as the destination

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defaults write com.apple.screencapture location ~/Desktop/Screenshots/;killall SystemUIServer

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Some notes for react

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What is currying?

A. “Returning a function that takes multiple arguments” into a “chain of functions that takes one argument”

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import modules with absolute path

Before

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import Foo from './components/Foo';

After

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import Foo from 'components/Foo';

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Form with Formik with Yup

How to

TBC

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