Question

我有一组对象。

当我将一个新对象推入我的父函数时，我希望它：

检查对象是否已存在于数组
如果是，请检查该对象的值是否已更改
如果有，请更新对象
如果没有，只需将对象保留原样

否则：

如果对象不存在，请将其推入数组

这听起来很简单，我的逻辑似乎正好在我脑海中，但我似乎无法按照上面的描述进行操作，而是尝试通过传递一个具有相同键的对象来更新属性。在数组中已经作为函数的参数，覆盖它的新值并推送一个新的副本.....，这里是相关的代码：

var filters = [];

function addFilterToFiltersArray(obj) {
  var isValidFilter,
    filterKey = "",
    filterEnglishReadable = "",
    hasBeenAjaxed;

  for (var prop in knownFilters) {
    //is the filter a valid key in the knownFilters object?
    if (obj.key === prop) {
      //if so set it as valid and create a variable to hold the key and another for the value
      isValidFilter = true,
        filterKey = prop,
        filterEnglishReadable = knownFilters[prop];

      //check if the filters array has elements in it
      if (filters.length > 0) {
        //if it does, loop the array
        for (var i = 0; i < filters.length; i++) {
          //check if any of the array objects have a key that matches the pushed filter
          console.log(obj)
          if (filters[i].key === obj.key) {
            console.log('keys are equal, update', filters[i].key, obj.key)
              //if it does, check if the value has changed in the newly pushed version
            if (filters[i].value === obj.value) {
              //if the value has not changed, it is in the array and there is no update necessary
              hasBeenAjaxed = true;
            } else {
              //otherwise we overwrite the value with the new value
              filters[i].value = obj.value;
              //since we have now updated the value of the object in the filters array
              //we not set the hasBeenAjaxed variable to false so that ajax runs with the new value
              hasBeenAjaxed = false;
            }
          } else {
            console.log('keys are not equal, push', filters[i].key, obj.key, obj)
              //otherwise, the filter key is not in the array and so we set the hasBeenAjaxed variable as such
            hasBeenAjaxed = false;
            filters.push(obj);
          }
        }
      } else {
        //in this case, the array is empty and thus we can assume that the filter isnt there, obviously.
        hasBeenAjaxed = false;
        filters.push(obj);
      }
      //if the value was updated, the filter wasnt found in the above loop, we push the new value/key-value and run ajax
      if (hasBeenAjaxed === false) {
        //ajax
        //pass to the dom builder
        addFilterToDOM(filterEnglishReadable);
      }
    } else {
      //otherwise its not valid
      isValidFilter = false;
      filterEnglishReadable = "";
    }
  }
}

也许我只是遗漏了一些小事，但是，是的，有什么想法吗？

数组循环不按预期工作

0 个答案: