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lodash filter collection by other collection


lodash filter collection by other collection

By : Taylor Smith
Date : November 22 2020, 02:42 PM
hope this fix your issue The function _.intersectionWith was added in lodash 4.0, it should do exactly what you want. Use it as follows:
code :
var collection = [
    {id:1, name:'one'},
    {id:2, name:'two'},
    {id:3, name:'three'}
];

var filter = [
    {id:2, name:'two'}
];


// _.isEqual performs a deep comparison
_.intersectionWith(collection, filter, _.isEqual) // [{"id":2,"name":"two"}]


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lodash Filter collection using array of values

lodash Filter collection using array of values


By : SerpentSolide
Date : March 29 2020, 07:55 AM
will be helpful for those in need If you're going to use this sort of pattern a lot, you could create a mixin like the following, though, it isn't doing anything fundementally different than your original code. It just makes it more developer friendly.
code :
_.mixin({
  'findByValues': function(collection, property, values) {
    return _.filter(collection, function(item) {
      return _.contains(values, item[property]);
    });
  }
});
var collections = [
    {id: 1, name: 'xyz'}, 
    {id: 2,  name: 'ds'},
    {id: 3,  name: 'rtrt'},
    {id: 4,  name: 'nhf'},
    {id: 5,  name: 'qwe'}
];

var filtered = _.findByValues(collections, "id", [1,3,4]);
_(collections)
  .keyBy('id') // or .indexBy() if using lodash 3.x
  .at(ids)
  .value();
Complex collection filter with lodash

Complex collection filter with lodash


By : سهام حنونة
Date : March 29 2020, 07:55 AM
it fixes the issue Use the _.matches shorthand of _.filter to perform partial deep comparisons as you filter:
code :
var array = [{"name":"some name","type":"type1","collection":["one","two","three"]},{"name":"another name","type":"type1","collection":["one","two"]},{"name":"third name","type":"type2","collection":["two"]}];
    
var filtered = _.filter(array, { 
  type: 'type1', 
  collection: ['one', 'two'] 
});

console.log(filtered);
<script src="https://cdn.jsdelivr.net/lodash/4.15.0/lodash.min.js"></script>
Nested collection filter with lodash

Nested collection filter with lodash


By : Alex Palacio
Date : March 29 2020, 07:55 AM
around this issue I have a collection like as below , just check if some legs of flight contains carrierName
code :
_.filter(flights, function(flight) {
    return _.chain(flight)
        .get('legs')
        .map('carrierName')
        .includes('Pegasus')
        .value()
});
_.filter(flights, function(flight) {
    return _.chain(flight)
        .get('legs')
        .map('carrierName')
        .thru(function(names) {
            return _.every(valuesArr, function(val) { // _.some for OR, _.every for AND
                return _.includes(names, val);
            });
        })
        .value()
});
lodash: Filter collection using array of values

lodash: Filter collection using array of values


By : Vanlade
Date : March 29 2020, 07:55 AM
This might help you I found this solution: , If by all values you mean the objects, then
code :
const values = collections.filter(e => ['somename1', 'somename2'].includes(e.name))
const descriptions = values.map(e => e.description)
Lodash - Filter nested collection by array of prop value

Lodash - Filter nested collection by array of prop value


By : Rajhans Hansu
Date : March 29 2020, 07:55 AM
hop of those help? You can use map and filter together to apply filter on nested element,
code :
_.map(data, elem => {
    elem.children = _.filter(elem.children, child => selectedIds.includes(child.id));
    return elem;
});
_.map(data, elem => {
    let children = _.filter(elem.children, child => selectedIds.includes(child.id));
    return Object.assign({}, elem, {children});
});
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