lodash

Data : var data = [ { "id": 1, "level": "1", "text": "Sammy", "type": "Item", "items": [ { "id": 11, "level": "2", "text": "Table", "type": "Item", "items": [ { "id": 111, "level": "3", "text": "Dog", "type": "Item", "items": null }, { "id": 112, "level": "3", "text": "Cat", "type": "Item", "items": null } ] }, { "id": 12, "level": "2", "text": "Chair", "type": "Item", "items": [ { "id": 121, "level": "3", "text": "Dog", "type": "Item", "items": null }, { "id": 122, "level": "3", "text": "Cat", "type": "Item", "items": null } ] } ] }, { "id": 2, "level": "1", "text": "Sundy", "type": "Item",

i have a dynamic data each time there could be dynamically different key value pair to be filtered in different data. how can we filter it with multiple key,value in lodash. i was using its filter function but result is not achievable. example data: var data = [ { "VOTER" : 1012, "PARTY" : "REPUBLICAN", "PRECINCT" : 2408, "AGE_GROUP" : "71 +", "LAST_VOTED" : "08/2006", "YEARS_REG" : 51, "BALLOT_STATUS" : "PERM" }, { "VOTER" : 1013, "PARTY" : "REPUBLICAN", "PRECINCT" : 2411, "AGE_GROUP" : "71 +", "LAST_VOTED" : "08/2006", "YEARS_REG" : 50, "BALLOT_STATUS" : "PERM" }, { "VOTER" : 1014, "PARTY" :

I used to write something like _.map(items, (item, index) => {}); with lodash. Usually I don't need index but sometimes it's useful. I'm migrating to Ramda now: R.map((item, index) => {}, items); index is undefined . Sure, I can create variable index in upper scope and increment it every time in map body but it's kinda wrong from FP point of view that Ramda stands for. So is there's any build in way of getting iteration index? Check out addIndex : Creates a new list iteration function from an existing one by adding two new parameters to its callback function: the current index, and the entire

A glance at the Lo-Dash docs shows that the API falls in to categories of: Arrays, Chaining, Collections, Functions, Objects, Utilities, Methods, and Properties A more detailed look in to the Arrays API shows approximately 30 different methods available that are applicable to arrays. The Collections API has a few more methods than the Arrays API, and they do not share the same methods. Within the Collections API, a collection is described as an object that is iterated, and may be an array: collection (Array|Object|string): The collection to iterate over. Also, interestingly, there's a

I want to Filter an array of objects with another array of object.The logic will be used in product search by category and color etc. This is my main Array : products: [{ id: 1, name: 'Product 1', category: 'Home', skill: 'Easy', color: 'blue', price: 100.00 }, { id: 2, name: 'Product 2', category: 'Home', skill: 'Intermediate', color: 'red', price: 120.00 }, { id: 3, name: 'Product 3', category: 'Office', skill: 'Intermediate', color: 'green', price: 190.00 }, { id: 4, name: 'Product 4', category: 'Office', skill: 'Advanced', color: 'blue', price: 260.00 }, { id: 5, name: 'Product 5',

I am trying to find out in lodash javascript library , how to find out filter array of objects multiple values of key. something similar to SQL - WHERE KEY in (val1, val2) Having said, with following example : var users = [ { 'user': 'barney', 'age': 36, 'active': true }, { 'user': 'fred', 'age': 40, 'active': false }, { 'user': 'Avding', 'age': 34, 'active': true } ]; _.filter(...) How can I find users, who's age in (34, 36) ?? numbers can also change runtime Lodash's filter accepts a predicate. You can create the predicate using partial application, so you can change the values easily: var