// greeting
let yourname = prompt("Write your name");
alert("Hello, " + yourname) ;

//gopnichek
{
    let line = prompt("Write some text with  ( , )")
    let result = line.split(",").join(",blin,")
    alert(result)
}

///capitalize
{
    let str = "cANbeBra"
    let result = str.split('')[0].toUpperCase() + str.slice(1,8).toLowerCase()
    console.log(result)
    alert(result)
}

//word count 
{
    let str = prompt("Write your sentence with space")
    let leng = str.split(' ').length
    console.log(leng) 
    alert("Length is " + leng)
}

//Credentials
{
    let firstname = prompt("Write your name")
    let surname = prompt("Write your surname")
    let thirdname = prompt("Write your thirdname")
    let padend = " "
    let result1 = firstname.split("")[0].toUpperCase() + firstname.slice(1,+Infinity).toLowerCase() + padend
    let result2 = surname.split("")[0].toUpperCase() + surname.slice(1,+Infinity).toLowerCase() + padend
    let result3 = thirdname.split("")[0].toUpperCase() + thirdname.slice(1,+Infinity).toLowerCase() + padend
    let fullname = (result1   +  result2 +  result3)
    alert(fullname)
}

//Beer
{
    let str = "Было жарко. Василий пил пиво вприкуску с креветками"
    let firstcut = str.slice(0,24)
    let newword = "чай"
    let padend = " "
    let secondcut = str.slice(29,+Infinity)
    let newstr = firstcut + newword + padend + secondcut
    alert(newstr)
}

//No tag
{
    let str = "какой-то текст в котором есть один тэг <br /> и всякое другое"
    let result = str.split('<br />').join('')
    alert(result)
}

//Big tag
{
    let str = "какой-то текст в котором есть один тэг <br /> и всякое другое"
    let result = str.split('<br />').join('<BR />')
    alert(result)
}

//New line
{
    let line = prompt("Write some text,you can use (\\n) for add new line")
    alert(line.split('\\n').join('\n'))
}