js uppercase first letter
const str = `abc`;
str.slice(0, 1).toUpperCase();
// "A"
str.slice(1).toLowerCase();
// "bc"
// js uppercase first letter
// capital / capitalization
const log = console.log;
const AutoUpperFirstIndexLetters = (str = ``, index = 1) => {
return str.slice(0, index).toUpperCase() + str.slice(index).toLowerCase();
}
// test
const str = `abcdefg`;
const result1 = AutoUpperFirstIndexLetters(str);
const result2 = AutoUpperFirstIndexLetters(str, 3);
log(`result1 =`, result1);
// result1 = Abcdefg
log(`result2 =`, result2);
// result2 = ABCdefg
refs
https://www.geeksforgeeks.org/how-to-make-first-letter-of-a-string-uppercase-in-javascript/
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