Capitalize the first letter of each word in a JavaScript character string

Map () + replace ()

function Titlecase (str) {    var converttoarray = Str.tolowercase (). Split ("");    var result = Converttoarray.map (function (val) {        return val.replace (Val.charat (0), Val.charat (0). toUpperCase ());    }) ;    Return Result.join ("");} Titlecase ("Hello World");   

　　

For In + replace ()

function titlecase (str) {    = Str.tolowercase (). Split (");      for (var in str) {        = str[i].replace (Str[i].charat (0), Str[i].charat (0). toUpperCase ( ));    };     return str.join (");} Titlecase ("Hello World");   //

Map () + slice ()

functi On titlecase return str.tolowercase (). Split (function (word) {return (Word.charat (0). toUpperCase () + word.slice (1)). Join (//"Hello World"          

Capitalize the first letter of each word in the JavaScript string