carsenchan

const invalidMsg = {
  emptyQty: "Qty cannot be empty",
  invalidQty: "Invalid Qty input",
  zeroQty: "Qty cannot be zero",
  decimal: "Qty cannot be decimal",
}

// decimal regex
const regexDecimal = /^\d*\.?\d*$/;

carsenchan

Project setup

Purpose

To ensure that the coding style is consisitent in the project from different members, for React + Typescript projects, it is recommanded set up ESlint and Prettier.

1. Install the required dev dependencies:

yarn add eslint @typescript-eslint/parser @typescript-eslint/eslint-plugin eslint-plugin-react -D

carsenchan

function generateRandomString(length: number): string {
    // Define the character set using a regular expression
    const characterSet = /[a-zA-Z0-9]/;
    
    let result = '';
    for (let i = 0; i < length; i++) {
        // Generate a random character from the character set
        const randomChar = String.fromCharCode(Math.floor(Math.random() * 62) + 48);
        result += randomChar;
    }

carsenchan

node -e 'console.log(v8.getHeapStatistics().heap_size_limit/(1024*1024))'