如何过滤多维javascript数组 [英] How to filter multidimensional javascript array
本文介绍了如何过滤多维javascript数组的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我的第一篇文章:我一直在寻找解决方案很长一段时间。
This is my first post : I've been looking for a solution for quite a long time.
所以我有这个JSON数据:
So I have this JSON data :
var object = [{
"nid": "31",
"0": {
"tid": "20",
"name": "Bench Press",
"objectDate": "2012-02-08",
"goal": "rep",
"result": "55.00",
"comments": "sick!",
"maxload": "250"
},
"1": {
"tid": "22",
"name": "Back Squat",
"objectDate": "2012-02-08",
"goal": "time",
"result": "8.00",
"comments": "i was tired.",
"maxload": "310"
}},
{
"nid": "30",
"0": {
"tid": "19",
"name": "Fran",
"objectDate": "2012-02-07",
"goal": "time",
"result": "5.00",
"comments": null
}}];
我想按名称过滤它。例如,如果我为名称Fran应用过滤器,我想要这样的东西:
And I would like to filter it by name. For instance, if I apply a filter for the name "Fran", I'd like to have something like this:
[0] => Array
(
[tid] => 19
[name] => Fran
[objectDate] => 2012-02-07
[goal] => time
[result] => 5.00
[comments] =>
)
[1] => Array
(
[tid] => 19
[name] => Fran
[objectDate] => 2012-02-08
[goal] => rep
[result] => 55.00
[comments] => woohoo!
)
有可能实现吗?任何帮助将不胜感激! :>
Is it possible to achieve? Any help would be greatly appreciated! :>
推荐答案
在Javascript中没有此功能。你必须自己编写这样的函数。
There is no function for this in Javascript. You have to write your own function like this.
var arr = [{"nid":"31","0":{"tid":"20","name":"Bench Press","objectDate":"2012-02-08","goal":"rep","result":"55.00","comments":"sick!","maxload":"250"},"1":{"tid":"22","name":"Back Squat","objectDate":"2012-02-08","goal":"time","result":"8.00","comments":"i was tired.","maxload":"310"}},{"nid":"30","0":{"tid":"19","name":"Fran","objectDate":"2012-02-07","goal":"time","result":"5.00","comments":null}}];
function filterByProperty(array, prop, value){
var filtered = [];
for(var i = 0; i < array.length; i++){
var obj = array[i];
for(var key in obj){
if(typeof(obj[key] == "object")){
var item = obj[key];
if(item[prop] == value){
filtered.push(item);
}
}
}
}
return filtered;
}
var byName = filterByProperty(arr, "name", "Fran");
var byGoal = filterByProperty(arr, "goal", "time");
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