使用箭頭函數重寫
在以下程式碼中，將函數表達式替換為箭頭函數
function ask(question, yes, no) {
if (confirm(question)) yes();
else no();
}
ask(
"Do you agree?",
function() { alert("You agreed."); },
function() { alert("You canceled the execution."); }
);function ask(question, yes, no) {
if (confirm(question)) yes();
else no();
}
ask(
"Do you agree?",
() => alert("You agreed."),
() => alert("You canceled the execution.")
);看起來簡潔又乾淨，對吧？