如何通过使用onclick事件中的函数并使用循环从函数中的数组中计数函数来调用多个JavaScript函数？

Question

How to call multiple JavaScript functions by using function in onclick event and using loop to count functions from array in function? Demonstration:

var arr = [function one(){console.log("one")}, function two(){console.log("two")} ];

htmlElement.onclick = function(){
  for(var i = 0, a = arr.length; i < a; i++ ){
  }
}

Answer 1

Simple - don't use onclick - it's brittle (especially when used inline within HTML) and harks back to how JS was written in the '90s.

Use addEventListener instead:

arr.forEach(function(callback) {
    htmlElement.addEventListener('click', callback);
});

Answer 2

for(var i = 0,a = arr.length; i<a; i++){
    arr[i]();
}

This should work.