JAVASCRIPT #1 ( variables , strings )

 // #one

"use strict";// for strictness of variables

// mane variables declare korilehe work koribo nhle nkore.. ane var declare nkorakeu jikunu namere kam solabo pari.

console.log("hello world");

var firstName = "kangkana";

console.log(firstName);

var firstname = "Queen";

console.log(firstName);

// variables number di start koribo nuare.

// variables r majot space dibo nuari

var value1 = 2;

console.log(value1 ** 0.5);

//constant r maan change koribo nuari

const pi = 3.14;

console.log(pi *2 * 3);

//strings r lenght count koriboloi .lenght use kora hoi..

let myName = "kangkana";

console.log(myName[3]);

console.log(myName.length);

console.log(myName[myName.length-2]);

//strings r space remove koriboloi.trim use kora hoi.

let lastName = "   kalita   ";

console.log(lastName.length);

let newString = lastName.trim();

console.log(newString.length);

//upper case loi convert koriboloi....

lastName = "kalita";

lastName = lastName.toUpperCase();

console.log(lastName);

//to lower case convert

myName = "Queen";

myName = myName.toLowerCase();

console.log(myName);

// to get some strings charecters not all...

//start index to end index

// juntu index loi jabo lage tatke 1 besi number dibo lage..

//slice(0,5) dile 0 r pora 4 number index loi jabo.

lastName = "kalita";

let oldString = lastName.slice(0,5);

console.log(oldString);

output: