How to filter data on Object in Angular

I get data from backend with this function private loaddata(): void { this.dataService.loaddata().pipe( tap((response: any) => { this.persons = response.results; this….

How to concataecance object array values of duplicates

I have an object that contains duplicate id properties and I want to reduce them to one array for each. I only figured out a way to find unique ids, but how can I concat the name attribute? const x = […

How to filter by id?

const allStories = [{id: 5, title: ‘Hello title’}, {id: 10, title: ‘Hello title2’}]; const id = [“5″,”25″,”10”]; const book = allStories.filter(story => story.story_id …

React map how to remove empty elements?

I have objects, some of these objects have different properties when the map renders empty elements for me https://ibb.co/BGnB0xL How can I remove these empty elements? maybe you need to use filter or …

How do I eliminate all these if-else

I have written this code to filter a “books” array, depending on the author or genre have been given as a parameter:- //This code works perfectly fine as is allBooks: (root, args) => { …

Node.js javascript: Reduce Array of Object by Multiple Key Value

I have the following array of objects in a Node.js script: [ { start: ’10-05-2018′, assigned_agent: ‘1257434’ }, { start: ’10-05-2018′, assigned_agent: ‘1257434’ }, …

Filter array based on multiple filters

I have a table that I want to be able to apply multiple filters to. My current code will filter by email OR status but I want it to do both so a user can refine the results. I’ve tried adding &&…

How to filter elements and then set condition

First want to filter by class and then change class name :

Javascript How to filter through nested array data

I have a search field which filters through an array when I’m typing. So far it works ok, but I cannot search within the “courses” array! How can I achieve this? The complete array looks …

Combine javascript functions to work together

I am building a search form that filters the results based on the a text input as well as select options from four separate drop-downs (category, sub-category, location, etc). The following two functions work well, but I just realized that if I type a search term in the input, make my drop-down selections and then go back and type a different search term, my drop-downs are ignored. I’ve found solutions for similar problems across this site, but nothing that pertains to my particular situation. This is the filter for the drop-downs: and Here is the one the filters based on