Capitalize first letter of a string using Angular or typescript [duplicate]

Question

How can I capitalize the first letter of a string using Angular or typescript?

Answer 1

function titleCaseWord(word: string) {   if (!word) return word;   return word[0].toUpperCase() + word.substr(1).toLowerCase(); } 

You can also use in template TitleCasePipe

Some component template:

{{value |titlecase}} 

Answer 2

 let str:string = 'hello';  str = str[0].toUpperCase() + str.slice(1);