Coding with Bozlur Rosid Sagor.

In this topic, I will use Visual Studio Code (VS Code). First, install Node.js and NPM (Node Package Manager), then install VS Code on your system. JavaScript ES6 features are awesome. If you learn ES6, you may easily handle React, VUE, Angular projects.

document.designMode = "on"
my_bio = () => "The simplest changes make a huge difference.";

First, install Homebrew. /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Then you may follow the commands

brew update
brew doctor

Next, add Homebrew’s location to your $PATH in your .bash_profile or .zshrc file.

export PATH="/usr/local/bin:$PATH"
brew install node
npm install -g grunt-cli

npm -v
node -v

• ES6 basic

  • Variable data type
  • Map
  • Filter
  • Conditional Statement

• Special data types

  • Fibonacci
  • Factorial
  • Recursion
  • Stack
  • Queue
  • Linked list
  • Binary search

• Loop

  • For loop
  • While loop
  • Do-while loop

• Function

  • Old function
  • Arrow function
  • Callback function
  • Promise

• OOP

  • Class
  • Constructor
  • Object

arrayObject.filter(callback, contextObject);

The filter() method creates a new array with all the elements that pass the test implemented by the callback() function. Internally, the filter() method iterates over each element of the array and passes each element to the callback function. If the callback function returns true, it includes the element in the return array. The filter() method accepts two named arguments: a callback function and an optional object.

// Helper function to convert file to Base64
  const convertToBase64 = (file) => {
    return new Promise((resolve, reject) => {
      const reader = new FileReader();
      reader.onload = () => resolve(reader.result);
      reader.onerror = (error) => reject(error);
      reader.readAsDataURL(file);
    });
  };

####### Convert:

const handleFileChange = async (event) => {
    const file = event.target.files[0];
    if (file) {
      try {
        const base64 = await convertToBase64(file);
        setIcon(base64); // Save Base64 string
      } catch (err) {
        console.error("Error converting file to Base64:", err);
      }
    }
  };

console.log(NaN === NaN);