STRING METHOD

USEFUL STRING METHOD

Useful string properties & methods

length, charAt, indexOf, lastIndexOf, trim, toUpperCase, replaceAll


                let userName = "Bro Code"

                console.log(userName.length) // characters


                result: 8


            let userName = "Bro Code"

        console.log(userName.chart(0)) // index = 0


        result: B

        

        let userName = "Bro Code"

        console.log(userName.chart(1))


        result: r


        let userName = "Bro Code"

        console.log(userName.indexOf("o")) // character position in the string


        result: 2


        let userName = "Bro Code"

        console.log(userName.lastIndexOf("d")) // number of character and white spaces until the "d" letter


        result: 6


        let userName = "Bro Code"

        userName = userName.toUpperCase();

        console.log(userName)


        result: BRO CODE


        let userName = "Bro Code"

        userName = userName.toLowerCase();

        console.log(userName)


        result: bro code

        
        let phoneNumber = "123-456-7890"

        phoneNumber = phoneNumber.replaceAll("-", "/") // replace from - TO /

        console.log(phoneNumber)


        result: 123/456/7890

        
        let phoneNumber = "123-456-7890"

        phoneNumber = phoneNumber.replaceAll("-", "") // replace from - TO nothing

        console.log(phoneNumber)


        result: 1234567890