Chalk Module in JavaScript

Chalk module in Node.js is the third-party module that is used for styling the format of text or create our own theme in the node.js project

For the neog.camp in the mark 1 i learn about it and used in my program .

A small part of program is as follows :-

we can use even const and var as per our choice.

var variable = require('readline-sync');
const chalk = require('chalk');

we have to first write the following code for importing the module
Now ,

var variable = require('readline-sync');

Using readline-sync helps us to get the user input later if we want in our program

# concatenation

It concatenates one string to the end of another string using the ( + ) Sign .
We can use this for welcoming the users.

console.log("wecome " + user )

eg:- In this program we want to check that the user is correct or not about the questions provided .

Now,

const chalk = require('chalk');

chalk is a variable here you can use any name as you want for the variable .

we have to import chalk module is used for providing the color for for the console.log() as we discussed earlier

var username = variable.question('what is your name ? ');

console.log(chalk.blue("welcome",username,"lets play"));

here using the chalk.blue we can get the blue color for the console.log part as :-

We can use the chalk module as a variable also :-

const warning=chalk.red;
const welcome=chalk.green;
const endgame=chalk.yellow;

We can use in the console.log() as :-

    console.log(welcome('you are right! '));

    console.log(warning('oops! its wrong'));

We will assign the score for the small CLI app game :-

Functions

           function gamename(playername){
                       console.log(playername)

                     }



            function name(){
                    console.log("Ayush Prakash")
                   }

These are two types of functions one take parameter and second one doesn't take any parameter, what parameter means is to pass a value to that piece of code which that code can implement function includes concepts of global and local variable, “ A variable inside a function stays inside a function unless its global ” that means a variable declared inside a function cannot be used by other functions unless its global or its passed as parameter

Initially the score will be zero .

score = 0;


function playGAme(question,answer){
  var Userans = variable.question(question);

  if (Userans === answer){
    console.log(welcome('you are right! '));
    score = score+ 1;
  }else{
    console.log(warning('oops! its wrong'));

  }

}

for last defining part we can use it with console.log as shown below :-

Lists

As we have seen array stores a single value without ref to store value with ref we use dictionary wich consists of key & value pair we can call a value by its key name. it uses 'CURLY BRACKETS {..}'

var obj1 ={
  name:"Ayush",
  age:"20",

}
var obj2 ={
  name:"Prakash",
  age:"15"
}

We can use the user provided data in the list of object and if we have more than one time to do we will use loop Both can be done as :-

var listofstudent = [];

for (let i=0 ; i<5 ; i++) {

var name = variable.question('what is your name ? ');
var unitTest = variable.question('what is your unit test marks ? ');
var preFinal = variable.question('what is your Pre final ? ');
var final = variable.question('what is your Final marks ? ');

console.log('------------------------------------------')
console.log('------------------------------------------')

var tempobj ={
  name: name,
  unitMarks: unitTest,
  preMarks: preFinal,
  finalMarks : final
}
listofstudent.push(tempobj);
}

We are storing the values here unitTest marks and all in the listofstudents list . Later we made temp object and later we push the values in the listofstudents list

We can use that in a function as :-

var obj1 ={
  name:"ram",
  power:"2500",
  yuga:"treta"
}
var obj2 ={
  name:"krishna",
  power:"2325",
  yuga:"dwapar"
}

function playGAme(obj1,obj2){


  if (Number(obj1.power) > Number(obj2.power)){
    console.log(chalk.yellow(obj1.name + ' has more power than '+obj2.name));

  }  
  else if (Number(obj1.power) < Number(obj2.power)){
    console.log(chalk.yellow(obj2.name + ' has more power than '+obj1.name));

  }  

  else{
    console.log('they both have same power')
  }

}

playGAme(obj1,obj2);

thanks for giving your valuable time .