[英]Adding items from array into objects within another array
I am currently looping through the data that I have, getting all values for a specific column and adding them to an array, then limiting it to only unique values.我目前正在遍历我拥有的数据,获取特定列的所有值并将它们添加到数组中,然后将其限制为唯一值。
I also have a reportSections
array that needs to be dynamic based on how many items are currently in my date_group
array.我还有一个
reportSections
数组,它需要根据我的date_group
数组中当前有多少项目而动态变化。 How can I loop through those arrays and add the values to the id
and name
objects within my reportSections
array?如何遍历那些 arrays 并将值添加到我的
reportSections
数组中的id
和name
对象?
Ideally, I'm thinking there might contain some sort of for loop that can loop through the reportSections
array and dynamically add the values inside the date_group
and record_group
arrays to the id
and name
objects, but not sure how that would work.理想情况下,我认为可能包含某种 for 循环,它可以遍历
reportSections
数组并动态地将date_group
和record_group
arrays 中的值添加到id
和name
对象,但不确定它是如何工作的。
var date_group = [];
var record_date = [];
var i;
for (i = 0; i < data.length; i++) {
date_group.push(data[i]['date group']);
record_date.push(data[i]['record date']);
}
date_group = _.uniq(date_group);
record_date = _.uniq(record_date);
const reportSections = [
{id: 'date_group1', name: 'record_date1'},
{id: 'date_group2', name: 'record_date2'},
{id: 'date_group3', name: 'record_date3'},
{id: 'date_group4', name: 'record_date4'},
{id: 'date_group5', name: 'record_date5'},
{id: 'date_group6', name: 'record_date6'},
];
Regarding making items unique im confused looking at your question but try this solution.关于使项目独一无二,我在看您的问题时感到困惑,但请尝试此解决方案。
Use set
for unique records将
set
用于唯一记录
let data = [{ "date group": "C", "record date": "13 Mar 20" }, { "date group": "B", "record date": "11 Mar 20" }, { "date group": "A", "record date": "11 Mar 20" }, { "date group": "B", "record date": "12 Mar 20" }, { "date group": "C", "record date": "11 Mar 20" } ] let reportSections = []; let dataGroups = new Set(); let recordDates = new Set(); data.forEach(item => { dataGroups.add(item['date group']); recordDates.add(item['record date']) }) for (const [index, value] of [...dataGroups].entries()) reportSections.push({ id: value, name: [...recordDates][index] }) console.log(reportSections);
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