stringmethod.js

// string methods

let str="Welcome hello test";
console.log(str.length);// lenghth start from 1
console.log(str.toUpperCase());// convert all upper
console.log(str.toLowerCase());//convert all lower
console.log(str.charAt(10));// what value present at 10th index
console.log(str.indexOf("e")); //which index e present
console.log(str.lastIndexOf("e"));
console.log(str.includes("hello")); // check value present or not
console.log(str.startsWith("W")); // check whether this how string start
console.log(str.endsWith("st"));// check this is how string ends
console.log(str.slice(0,7));// slice the value welcome 
console.log(str.slice(-10,-5)); // slice in negative
console.log(str.slice(-4)); // 
console.log(str.replace("test","world")); // replace 

// trim only removes space front and end 


//split
let str2="Welcome hello test";
console.log(str2.split(" "));
console.log(str2.split("e"));

//task ["W","e"......."i"]


// trim method
let newstr="  hello  hi   "
console.log(newstr);
console.log(newstr.trim());

// concat method
console.log(str.concat(newstr));  // add of 2 strings

//task8 // str="banana"
//a==> @
// b@n@n@a