Offirmo

https://testing-library.com/docs/react-testing-library/migrate-from-enzyme


// getByRole, queryByRole, getAllByRole, queryAllByRole, findByRole, findAllByRole
// getByLabelText, queryByLabelText, getAllByLabelText, queryAllByLabelText, findByLabelText, findAllByLabelText
// getByPlaceholderText, queryByPlaceholderText, getAllByPlaceholderText, queryAllByPlaceholderText, findByPlaceholderText, findAllByPlaceholderText
// getByText, queryByText, getAllByText, queryAllByText, findByText, findAllByText
// getByDisplayValue, queryByDisplayValue, getAllByDisplayValue, queryAllByDisplayValue, findByDisplayValue, findAllByDisplayValue
// getByAltText, queryByAltText, getAllByAltText, queryAllByAltText, findByAltText, findAllByAltText

Offirmo

## https://developers.google.com/edu/python

# ternary
a if x else b

## strings
## https://developers.google.com/edu/python/strings
s = 'hi'
print(s[1])          ## i
print(len(s))        ## 2

Offirmo

// https://isocpp.org/images/uploads/2-Tour-Basics.pdf

std::cout << __func__ << __FILE__ << __LINE__ << std::endl;

// XXX scalar vs aggregate
const auto foo { 42 }; // valid but {} hints at aggregate (in theory)
const auto foo = 42;
const auto str { "foo" };

Offirmo

// all libs
// https://en.cppreference.com/w/cpp/header


////////////
#include <iostream>

    std::cout << "Hello, world!" << std::endl;

Offirmo

## starters
x = [ 1, 2, 3, 4, 5 , 6, 7 ]
print(f'{x} => {xyz(x)}')'

x = [ 1, 2, 3, 4, 5 , 6, 7 ]
print(f'{x} => {xyz(x, len(x))}')
   
x, y = 'foo', 2
print(f'{x},{y} => {xxxxx(x, y)}')

Offirmo

// Match objet partiel:

expect(xyz).toMatchObject({
  action: 'generated',
  attributes: {
    duration: expect.any(Number),
  },
});

Offirmo

import { expect } from 'chai'

import {
	LIB
} from '../index.js'


describe(`${LIB}`, function () {

  describe('plugins', function () {

Offirmo

// type tester for generics

type ImmutablePrimitive = undefined | null | boolean | string | number | Function
interface EmptyStruct { }


// https://www.typescriptlang.org/docs/handbook/2/functions.html#other-types-to-know-about
//type T = any
//type T = unknown
//type T = void

Offirmo

Resources for learning JavaScript (and its ecosystem) in 2020

• Links are introduced in suggested order of reading
• Intended target: someone knowing to program but not in JavaScript

Why?

1. Why investing in JavaScript? BLOG POST IN PROGRESS

Fundamentals

1. A re-introduction to JavaScript (JS tutorial) https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript

Offirmo

import { enforce_immutability, LastMigrationStep, MigrationStep, generic_migrate_to_latest } from '@offirmo-private/state-utils'

import { LIB, SCHEMA_VERSION } from './consts'
import { UState, TState } from './types'
import { OMRSoftExecutionContext } from './sec'

// some hints may be needed to migrate to demo state
// need to export them for composing tests
export const MIGRATION_HINTS_FOR_TESTS: any = enforce_immutability({
})