Javascript中回调数组的不同参数

Question

考虑我有四个功能:

function first() {
  console.log("This is the first function");
}

function second() {
  console.log("This is the second function");
}

function third() {
  console.log("This is the third function");
}

function fourth(name) {
  console.log("This is the fourth function " + name);
}

我试图将上面的函数列表传递给函数:

var list_of_functions = [first, second, third, fourth];
executeFunctions(list_of_functions);

这是executeFunction:

function executeFunctions(list_of_functions) {
  console.log("inside new executeFunctions");
  list_of_functions.forEach(function(entry) {
    entry();
  });
}

如何fourth在数组本身中传递函数的name参数？有没有办法做到这一点？

例如,我想做这样的事情:

var list_of_functions = [first, second, third, fourth("Mike")];

显然,上述说法是错误的.有没有办法做到这一点？

Answer 1

你可以使用这个bind功能:

var list_of_functions = [first, second, third, fourth.bind(this, "Mike")];

的第一个参数bind是你想要的this是内部fourth功能(可this,null或任何其他物体).