`How can I use lodash to filter an array based on any matching value?`

Question

`How can I use lodash to filter an array based on any matching value?`

I have a collection of objects and I need to search for instances where certain properties match specific values.

Here is an example array:

let arr = [
    {
        a: 'foo',
        b: 'bar'
    },
    {
        a: 'bar',
        b: 'baz'
    },
    {
        a: 'foo',
        b: 'baz'
    }
];

I want to filter the array to include objects that have a property with the value 'foo'.

Is there a way to achieve this using lodash? Perhaps something similar to the following:

_.filter(arr, function(obj) {
    return obj.anyPropertiesMatch('bar');
});

javascript arrays lodash

Answer 1

Answer №1

You can utilize the Array.filter() method to check for the existence of a value by using Object.values() to obtain an array of values and Array.includes() to determine if they include the specified val:

const val = 'foo';

const arr = [{"a":"foo","b":"bar"},{"a":"bar","b":"baz"},{"a":"foo","b":"baz"}];

const result = arr.filter((o) => Object.values(o).includes(val));

console.log(result);

Alternatively, you can use lodash's equivalent method _.includes():

const val = 'foo';

const arr = [{"a":"foo","b":"bar"},{"a":"bar","b":"baz"},{"a":"foo","b":"baz"}];

const result = _.filter(arr, (o) => _.includes(o, val));

console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Answer 2

You can utilize the Array.filter() method to check for the existence of a value by using Object.values() to obtain an array of values and Array.includes() to determine if they include the specified val:

const val = 'foo';

const arr = [{"a":"foo","b":"bar"},{"a":"bar","b":"baz"},{"a":"foo","b":"baz"}];

const result = arr.filter((o) => Object.values(o).includes(val));

console.log(result);

Alternatively, you can use lodash's equivalent method _.includes():

const val = 'foo';

const arr = [{"a":"foo","b":"bar"},{"a":"bar","b":"baz"},{"a":"foo","b":"baz"}];

const result = _.filter(arr, (o) => _.includes(o, val));

console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Answer 3

Answer №2

Let's make it easy:

_.filter(arr, o=>_.includes(o,'foo'));

You have the option to utilize the lodash array function on any object directly, which will compare each value with each element.

Take a look at this example in action:

let arr = [
    {
        a: 'foo',
        b: 'bar'
    },
    {
        a: 'bar',
        b: 'baz'
    },
    {
        a: 'foo',
        b: 'baz'
    }
];

let res = _.filter(arr, o=>_.includes(o,'foo'));
console.log(res)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>

Answer 4

Let's make it easy:

_.filter(arr, o=>_.includes(o,'foo'));

You have the option to utilize the lodash array function on any object directly, which will compare each value with each element.

Take a look at this example in action:

let arr = [
    {
        a: 'foo',
        b: 'bar'
    },
    {
        a: 'bar',
        b: 'baz'
    },
    {
        a: 'foo',
        b: 'baz'
    }
];

let res = _.filter(arr, o=>_.includes(o,'foo'));
console.log(res)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>

Answer 5

Answer №3

When working with lodash, you have the option to utilize the some method to verify whether an object contains a specific field with a certain value:

let arr = [
  { a: 'foo', b: 'bar' },
  { a: 'bar', b: 'baz' },
  { a: 'foo', b: 'baz' }
];

let result = _.filter(arr, obj => _.some(obj, val => val === 'foo'));
console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Answer 6

When working with lodash, you have the option to utilize the some method to verify whether an object contains a specific field with a certain value:

let arr = [
  { a: 'foo', b: 'bar' },
  { a: 'bar', b: 'baz' },
  { a: 'foo', b: 'baz' }
];

let result = _.filter(arr, obj => _.some(obj, val => val === 'foo'));
console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Answer 7

Answer №4

Using the power of LoDash to effectively filter an array based on object values. This is achieved by utilizing the _.filter method along with _.values and _.includes for comparison.

let data = [
    {
        x: 'apple',
        y: 'orange'
    },
    {
        x: 'orange',
        y: 'banana'
    },
    {
        x: 'apple',
        y: 'banana'
    }
];

let result = _.filter(data, obj => _.includes(_.values(obj), 'apple'));

console.log(result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>

Answer 8

Using the power of LoDash to effectively filter an array based on object values. This is achieved by utilizing the _.filter method along with _.values and _.includes for comparison.

let data = [
    {
        x: 'apple',
        y: 'orange'
    },
    {
        x: 'orange',
        y: 'banana'
    },
    {
        x: 'apple',
        y: 'banana'
    }
];

let result = _.filter(data, obj => _.includes(_.values(obj), 'apple'));

console.log(result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>

`How can I use lodash to filter an array based on any matching value?`

Answer №1

Answer №2

Answer №3

Answer №4

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