How to get first and last character of a string using 'String.startsWith' and 'String.endsWith' in JavaScript

String starts with is an emcscript es6 feature that allows JavaScript developers to test a string if the first character of a string matches the given criteria ,

Take for instance you have a string, you want to test if it starts with characters '#'

const str = "#JavaScript"

cons strr = "I love #kotlin"

str.startWith('#')

// true

strr.endsWith('#kotlin')

// true

strr.startWith('#')

// false

str.endsWith('#kotlin')

// false

Both functions return a boolean true for a match and false if there's no match.

endsWith does what startsWith does except that it does it at the end of the string