javascript/mar18task.js at master · reenakesavan/javascript · GitHub

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// get last 3 char
let str="Playwright"
console.log(str.substring(7,10));

// replace c-->C
let str1="chennai city center"
console.log(str1.replaceAll("c","C"));

// word count of  string
let str2="hi i am javascript"
let char1=str2.split(" ");
console.log(char1.length);

// empty arr

let arr=[]
arr.push(10); // insert elements
arr.push(20);
arr.push(30);
arr.push(40);
arr.push(50);
console.log(arr);
arr.pop(); // remove last element
console.log(arr);
arr.unshift(5); // insert element at first
console.log(arr);
arr.shift();
console.log(arr);

// reverse string
let word="abinaya";                                 // string cannot be directly reversed first need to split in array and array can be reversed
console.log(word.split("").reverse().join(""));


//palindrome

let word1="malayalam";
console.log(word1);
let word2=word1.split("").reverse().join("")

console.log(word2);
if (word1==word2)
{
    console.log("Palindrome");

}
else if (word1!==word2)
{
    console.log("Not Palindrome");

}

//"Apple" => string start as vowel


function vowel (str)
{
   let str1 =str.toLowerCase();
   console.log(str1);

    if (str1.includes("a")||str1.includes("e")||str1.includes("i")||str1. includes("o")||str1.includes("u"))
   {
    console.log("string contains vowel");

   }
 else
   {
    console.log("string doesn't contain vowel");

   }
}
vowel("apple")

///////////
function vowel1 (str1)
{
    let vow ="aeiouAEIOU"
    if (vow.includes(str1[0]))
    {
        console.log(str1,"string starts from vowel");

    }
    else
    {
         console.log(str1,"string not a vowel");

    }
}
vowel1("rat")
// task employee details

let employeedetails=(name,basicsalary,bonus,deduction)=>
{
    let salary= basicsalary+bonus+deduction;
    console.log("Name:",name);
    console.log("Totalsalary:" ,salary);

    if (salary>50000)
    {
        console.log("Remarks:High Salary");

    }
    else if (salary>=30000 && salary <=50000)
    {
console.log("Remarks:Medium Salary");

    }
    else if (salary<30000)
    {
        console.log("Remarks:Low Salary");

    }
    else
    {
        console.log("error");

    }
}
employeedetails("Reena",15000,5000,3000)


///////// task pizza order system
let pizza=(name1,size,quantity)=>
{
let smallprice=100;
let mediumprice=200;
let largeprice=300;
let totalamount= 0;
if (size=="small")
{   totalamount=smallprice*quantity

} else if (size=="medium")
{  totalamount=mediumprice*quantity
} else if (size=="large")
{   totalamount=largeprice*quantity
}
else
{
    console.log("error");
}
  console.log("Name:",name1);
  console.log("Size:",size);
  console.log("Quantity",quantity);
  console.log("Amount:",(totalamount));

}
pizza("PannerPizza","small",2)
pizza("onionpizza","medium",2)
pizza("capsicumpizza","large",2)