Question

说我下面有数组

var someStuff = [
  "start", { one: "one"},
  "setSomething", "foobar",
  "someBool", true
];

如何将其转换为以下内容

var someStuff = [
  MainFunc.start({one: "one"}),
  MainFunc.setClientId('foobar'),
  MainFunc.someBool(true)
];

Answer 1

这样尝试（您需要使用箭头函数，否则该函数将被直接调用）：

var someStuff = [
  "start", { one: "one"},
  "setSomething", "foobar",
  "someBool", true
];

let output = []

for(let i=0, j=0; i<someStuff.length; i+=2, j++) {
  let functionName = someStuff[i];
  let functionArgs = someStuff[i+1];

  output[j] = () => MainFunc[functionName](functionArgs);
}

console.log(output);

Answer 2

我认为您可能想这样做

function mainFunc() {
  this.start = function(obj) { console.log("start",obj) };
  this.setSomething = function(obj) { console.log("set",obj) };
  this.someBool =     function(obj) { console.log("bool",obj) };
}

var someStuff = {
  "start": { "one":"one"},
  "setSomething": "foobar",
  "someBool": true
}; 
var mf = new mainFunc();
for (var a in someStuff) {
  mf[a](someStuff[a])
}

Answer 3

为获得更好的可读性，请定义带有操作及其参数的对象数组。

const mainFunc = {
  start: (param) => console.log('start', param),
  setSomething: (param) => console.log('SetSomething', param),
  someBool: (param) => console.log('someBool', param)
}

var someStuff = [   
  { action: "start", param: { one: "one"} },
  { action: "setSomething", param: "foobar" },
  { action: "someBool",  param: true }
];

someStuff.forEach(stuff => {
    if (typeof mainFunc[stuff.action] === 'function') {
      mainFunc[stuff.action](stuff.param);
    }
});

Answer 4

假设您想要一个包含多个函数调用结果的数组，这就是获取方法。您需要遍历数组，从MainFunc对象获取每个函数，然后每次都调用它。

我包括了一个不存在的函数的处理，这恰好在您的示例中（也许不是故意的）。

var MainFunc = {
  start       : function(x) { return "start called with " + x.toString(); },
  setClientId : function(x) { return "setClientId called with " + x.toString(); },
  someBool    : function(x) { return "someBool called with " + x.toString(); }
}

var someStuff = [
  "start", { one: "one" },
  "setSomething", "foobar",
  "setClientId", "foobar",
  "someBool", true
];

var result = Process(someStuff);

function Process(arr) {
  var result = [];
  for (var i = 0; i < arr.length; i += 2) {
    let fnToCall = MainFunc[arr[i]];
    let fnResult = fnToCall ? fnToCall(arr[i + 1]) : "(unknown: '" + arr[i] + "')";
    result.push(fnResult);
  }
  return result;
}

console.log(result);

如何从字符串数组中删除双引号

4 个答案: