javascript lowercase string
var str = "My Big Boy!"
var res = str.toLowerCase(); //res is "my big boy!"javascript lowercase string
var str = "My Big Boy!"
var res = str.toLowerCase(); //res is "my big boy!"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(""); //falsejavascript lowercase string
var str = "ExaMple";
var res = str.toLowerCase();
output res -> "example"js tolowercase
str.toLowerCase()tolowercase javascript
var str = "Pigeon"
var res = str.toLowerCase();tolowercase js
const sentence = 'The quick brown fox jumps over the lazy dog.';
console.log(sentence.toLowerCase());Copyright © 2021 Codeinu
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