jQuery-在对象数组中查找不同的值 [英] jQuery - Finding Distinct Values in Object Array

问题描述

我有一个对象数组，其中每个对象都有标题，描述，族等字段.如何执行jQuery操作，以唯一的族名来捕获此数组中的所有对象-类似于SQL的DISTINCT子句?

I've got an array of objects where each object has fields like title, description, family, etc. How can I perform a jQuery operation that grabs all objects in this array with a unique family name - similar to SQL's DISTINCT clause?

推荐答案

您可以这样做:

var array = [{
    familyName: "one"},
{
    familyName: "two"},
{
    familyName: "one"},
{
    familyName: "two"}];

var dupes = {};
var singles = [];

$.each(array, function(i, el) {

    if (!dupes[el.familyName]) {
        dupes[el.familyName] = true;
        singles.push(el);
    }
});

单数是仅包含DISTINCT对象的数组

Singles is an array with only DISTINCT objects

编辑-我已经就此发表了博客，并给出了更详尽的答案

EDIT - i have blogged about this and given a more elaborate answer http://newcodeandroll.blogspot.it/2012/01/how-to-find-duplicates-in-array-in.html

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