Question

我有这些存储在数组中的对象：

var current = [{1:{X:"",Y:""},2:{X:"",Y:""},3:{X:"",Y:""}},
           {1:{X:"",Y:""},2:{X:"",Y:""},3:{X:"",Y:""}},
           {1:{X:"",Y:""},2:{X:"",Y:""},3:{X:"",Y:""}}
           ];

我想要的是动态存储它们并在函数中传递对象值后动态访问它们。

function getXAxis(num){
//any
}

function getYAxis(num){
//any
}

trial1a.X = getXAxis(current[0][1].X);
trial1a.Y = getYAxis(current[0][1].Y);
trial2a.X = getXAxis(current[0][2].X);
trial2a.Y = getYAxis(current[0][2].Y);
trial3a.X = getXAxis(current[0][3].X);
trial3a.Y = getYAxis(current[0][3].Y);
trial1b.X = getXAxis(current[1][1].X);
trial1b.Y = getYAxis(current[1][1].Y);

访问current值并以动态方式存储它们的最佳方法是什么

Answer 1

我认为您想要的是动态生成trials吗？

这样的事情应该做你想做的事情：

var trials = [];
for (var i = 0; i < current.length; i++) {
    trials[i] = {};
    for (var j in current[i]) {
        trials[i][j] = {
            X: getXAxis(current[i][j].X),
            Y: getYAxis(current[i][j].Y)
        };
    }
}

Answer 2

我想我知道你在找什么..

var root = {};
function setValueInDeepStructure(value, path, tree) {  
  var thisStep = path.shift();
  if (path.length == 0) {
    tree[thisStep] = value;
  } else {
    if (!tree[thisStep]) {
      tree[thisStep] = {};
    }

    setValueInDeepStructure(value, path, tree[thisStep]);
  }
}

function getValueFromDeepStructure(path, tree) {
  var thisStep = path.shift();
  if (path.length == 0)
    return tree[thisStep];
  else
    return getValueFromDeepStructure(path, tree[thisStep]);
}

setValueInDeepStructure({x: 3, y: 5}, [0,1,5,6], root);
setValueInDeepStructure(7, [0,1,5,6,'x'], root);

getValueFromDeepStructure([0,1,5,6], root) // => {x:7, y:5}

如何在JavaScript中访问和存储对象数组

2 个答案: