【Javascript】String.format 格式化字串

以前常利用c#的String.fomat來達到我想要的格式輸出
最近要用js來將某些資料更新到前端畫面，就寫了一下，不過還並不完整

String.Format("{0}, Javascript! {1}.", "Hi", "This is test");  //Hi, Javascript! This is test.

String.Format("{greeting}, {name}! {something}.", 
{
    greeting:"Hi",
    name:"Javascript",
    something:"This is test"
});//Hi, Javascript! This is test.