This is Javascript. please also how the html file if i need todo anything.

Function 4: Capitalize First Letter of Each Word Create a JavaScript function expression that meets the following requirements: Authored using function expression syntax (with constant name _capitalizeFirstLetter) That takes in a string as an argument The function converts first character of each word to uppercase The function returns the newly formatted string Console log output is NOT permitted. The function should pass each of the illustrated examples below at a minimum. _capitalizeFirst Letter ("This is a title") _capitalizeFirstLetter ("capitalize every word") _capitalizeFirstLetter ("I Like Pizza") _capitalizeFirstLetter ("PIZZA PIZZA PIZZA") "This Is A Title" "Capitalize Every Word" "I Like Pizza" "PIZZA PIZZA PIZZA"