javascript check if all capital letter
function isUpper(str) {
return !/[a-z]/.test(str) && /[A-Z]/.test(str);
}
isUpper("FOO"); //true
isUpper("bar"); //false
isUpper("123"); //false
isUpper("123a"); //false
isUpper("123A"); //true
isUpper("A123"); //true
isUpper(""); //falsecapitalize in javascript
const name = 'flavio'
const nameCapitalized = name.charAt(0).toUpperCase() + name.slice(1)to capital case javascript
const toCapitalCase = (string) => {
return string.charAt(0).toUpperCase() + string.slice(1);
};javascript capitalize
myString = 'the quick green alligator...';
myString.replace(/^\w/, (c) => c.toUpperCase());
myString = ' the quick green alligator...';
myString.trim().replace(/^\w/, (c) => c.toUpperCase());javascript Capitalise a String
const capitalize = str => str.charAt(0).toUpperCase() + str.slice(1)
capitalize("follow for more")
// Result: Follow for morecheck if letter is uppercase javascript
isUpperCase('A') // true
isUpperCase('a') // falseCopyright © 2021 Codeinu
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