check if word is capitalized js code example
Example 1: javascript check if all capital letter
function isUpper(str) {
return !/[a-z]/.test(str) && /[A-Z]/.test(str);
}
isUpper("FOO");
isUpper("bar");
isUpper("123");
isUpper("123a");
isUpper("123A");
isUpper("A123");
isUpper("");
Example 2: how to check if the first letter of a string is capitalized or uppercase in js
function startsWithCapital(word){
return word.charAt(0) === word.charAt(0).toUpperCase()
}
console.log(startsWithCapital("Hello"))
console.log(startsWithCapital("hello"))