Uppercase first letter of variable

Question

I have searched over the web can can\'t find anything to help me. I want to make the first letter of each word upper case within a variable.

So far i have tried:

Answer 1

It is as simple as the following:

string = 'test';
newString = string[0].toUpperCase() + string.slice(1);
alert(newString);

Answer 2

I have used this code -

function ucword(str){
    str = str.toLowerCase().replace(/(^([a-zA-Z\p{M}]))|([ -][a-zA-Z\p{M}])/g, function(replace_latter) { 
        return replace_latter.toUpperCase();
    });  //Can use also /\b[a-z]/g
    return str;  //First letter capital in each word
}

var uc = ucword("good morning. how are you?");
alert(uc);

Answer 3

 var str = "HELLO WORLD HELLO WORLD HELLO WORLD HELLO WORLD";
         str = str.replace(
                        /([A-Z])([A-Z]+)/g,
        				function (a, w1, w2) {
                            return w1 + w2.toLowerCase();
                        });
alert(str);

Answer 4

The string to lower before Capitalizing the first letter.

(Both use Jquery syntax)

function CapitaliseFirstLetter(elementId) {
    var txt = $("#" + elementId).val().toLowerCase();
    $("#" + elementId).val(txt.replace(/^(.)|\s(.)/g, function($1) {
    return $1.toUpperCase(); }));
    }

In addition a function to Capitalise the WHOLE string:

function CapitaliseAllText(elementId) {
     var txt = $("#" + elementId).val();
     $("#" + elementId).val(txt.toUpperCase());
     }

Syntax to use on a textbox's click event:

onClick="CapitaliseFirstLetter('TextId'); return false"

Answer 5

Simplest way

let str="hiren raiyani"
str.toLowerCase().replace(/(?<= )[^\s]|^./g, a => a.toUpperCase());

user-defined function:

function capitalize(str){
 return str.toLowerCase().replace(/(?<= )[^\s]|^./g, a => a.toUpperCase());
}

output: Hiren Raiyani

Use code as your user-defined function or direct