javascript - 上一个功能完成后调用一个功能(Call a function after previous function is complete)

Question

I have the following JavaScript code:(我有以下JavaScript代码：)

$('a.button').click(function(){
    if (condition == 'true'){
        function1(someVariable);
        function2(someOtherVariable);
    }
    else {
        doThis(someVariable);
    }
});

How can I ensure that function2 is called only after function1 has completed?(我怎么能保证function2只调用后function1已完成？)

  ask by Rrryyyaaannn translate from so

Answer 1

Specify an anonymous callback, and make function1 accept it:(指定一个匿名回调，并使function1接受它：)

$('a.button').click(function(){
    if (condition == 'true'){
        function1(someVariable, function() {
          function2(someOtherVariable);
        });
    }
    else {
        doThis(someVariable);
    }
});


function function1(param, callback) {
  ...do stuff
  callback();
}