使用箭头函数重写
在下面的代码中用箭头函数替换函数表达式
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.")
);看起来很短很干净，对吧？