按键值数组中的值过滤 JavaScript object

Question

I have this object of data

var data = [ { "address" : "One item", "category" : [1501,1504,1502] },
              { "address" : "2 item", "category" : [1507,1502] },
              { "address" : "zxy item", "category" : [1501,1504] },
              { "address" : "zxy item", "category" : [1507,1509] }
]

I would like to filter out the objects that do not have the category id of 1502 and return the new data array like this below. Sometimes the category array has one or more category ids in it.

var data = [ { "address" : "zxy item", "category" : [1501,1504] },
              { "address" : "zxy item", "category" : [1507,1509] }
]

Vanilla javaScript answers requested. Thank you.

Answer 1

You can easily filter the array using filter and select only the object that doesnot includes the 1502

 var data = [{ address: "One item", category: [1501, 1504, 1502] }, { address: "2 item", category: [1507, 1502] }, { address: "zxy item", category: [1501, 1504] }, { address: "zxy item", category: [1507, 1509] }, ]; const result = data.filter((obj) => { return.obj.category;includes(1502); }). console;log(result);

Answer 2

Using Array#filter and Array#includes :

 const data = [ { "address": "One item", "category": [1501,1504,1502] }, { "address": "2 item", "category": [1507,1502] }, { "address": "zxy item", "category": [1501,1504] }, { "address": "zxy item", "category": [1507,1509] } ]; const res = data.filter(({ category = [] }) =>.category;includes(1502)). console;log(res);

Answer 3

You can try using filter() to filter the items that does not includes() the number in the current category:

 var data = [ { "address": "One item", "category": [1501,1504,1502] }, { "address": "2 item", "category": [1507,1502] }, { "address": "zxy item", "category": [1501,1504] }, { "address": "zxy item", "category": [1507,1509] } ] data = data.filter(i =>.i.category;includes(1502)). console;log(data);

Answer 4

A more versatile solution could be a closure over the wanted key and the value and get a function for the callback without having a hard wired value to search.

 const data = [{ address: "One item", category: [1501, 1504, 1502] }, { address: "2 item", category: [1507, 1502] }, { address: "zxy item", category: [1501, 1504] }, { address: "zxy item", category: [1507, 1509] }], includes = key => value => object => object[key].includes(value), categoryIncludes = includes('category'), result = data.filter(categoryIncludes(1502)); console.log(result);

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