How to make string letters uppercase?

Question

Hi guys.How can i write a function that access the first and last letter of a string in an object and make the 2 letters uppercase

Answer 1

Cedrich

See your mistakes. I have resolved.

https://code.sololearn.com/Wdpm7bFowXLx/?ref=app

Answer 2

function upperCase(str) {
var last = str.length-1;
console.log(str[0].toUpperCase()+str.slice(1,last)+str[last].toUpperCase());

}

upperCase("cedrich");

Answer 3

Can you please give one example and also post your try too

Answer 4

you must get the first and last char, turn them uppercase, then return concatenation of first (upper) char + 2nd to last-1 chars + last (upper) char...

you must also try by yourself first, then request for help if needed... do kot forget to provide link to your code attempt ^^

Answer 5

There is my code ande its returning NaN.....https://code.sololearn.com/WHcdb0nTpgm6/?ref=app

Answer 6

Thanks I Am AJ ! for the help ,i noticed what i was doing wrong.i appreciate the correction

Answer 7

Thanks visph for the help,thats another way of solving it that i had not thought about.

Answer 8

https://www.w3schools.com/jsref/jsref_touppercase.asp

Answer 9

I have edited the parameters but its still returning NaN

Answer 10

https://code.sololearn.com/W2nknLkgBoik/?ref=app