js first letter uppercase
//capitalize only the first letter of the string.
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
//capitalize all words of a string.
function capitalizeWords(string) {
return string.replace(/(?:^|\s)\S/g, function(a) { return a.toUpperCase(); });
};uppercase string in js
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!javascript capitalize first letter
const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);capitalize in javascript
const name = 'flavio'
const nameCapitalized = name.charAt(0).toUpperCase() + name.slice(1)capitalize string js
With performance metrics...
// 10,889,187 operations/sec
function capitalizeFirstLetter(string) {
return string[0].toUpperCase() + string.slice(1);
}
// 10,875,535 operations/sec
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
// 4,632,536 operations/sec
function capitalizeFirstLetter(string) {
return string.replace(/^./, string[0].toUpperCase());
}
// 1,977,828 operations/sec
String.prototype.capitalizeFirstLetter = function() {
return this.charAt(0).toUpperCase() + this.slice(1);
}capitalize name function javascript
function capitalizeName(name) {
let nameObject = convertNameToObject(name);
let firstName = nameObject.firstName;
let lastName = nameObject.lastName;
return firstName[0].toUpperCase() + firstName.substring(1, firstName.length).toLowerCase() + " " + lastName[0].toUpperCase() + lastName.substring(1, lastName.length).toLowerCase()Copyright © 2021 Codeinu
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