javascript - Trying to filter out matching records from 2 array as 1 array have different structure -
below sample records :
var array1 = [ { "testid": 15, "child": [ { "variantid": 100, "name": "a1", }, { "variantid": 200, "name": "a2", }, { "variantid": 300, "name": "a3", }, { "variantid": 400, "name": "a4", }, { "variantid": 500, "name": "a5", } ] } ] var array2= [ { "variantid": 100, "tests": [ { "testid": 15, "flag" : true } ] }, { "variantid": 200, "tests": [ { "testid": 15, "flag" : false } ] }, { "variantid": 400, "tests": [ { "testid": 15, "flag" : true } ] }, { "variantid": 500, "tests": [ { "testid": 15, "flag" : true } ] } ] at first fetch selected testid record array1.now select variantid array2 flag true.for eg:from inputs ,variantids 100,400 , 500.
now selected variantsids array2 want fetch matching variantids array2 want search 100,400 , 500 in array1 , select matching records array1.
expected output :
"child": [ { "variantid": 100, "name": "a1", }, { "variantid": 400, "name": "a4", }, { "variantid": 500, "name": "a5", } ] so far successfull in getting specific testid record array1 not getting how filter out variantids array1 structure of array2 little complex.
can please me this?
var array1 = [ { "testid": 15, "child": [ { "variantid": 100, "name": "a1", }, { "variantid": 200, "name": "a2", }, { "variantid": 300, "name": "a3", }, { "variantid": 400, "name": "a4", }, { "variantid": 500, "name": "a5", } ] } ] var array2= [ { "variantid": 100, "tests": [ { "testid": 14, "flag" : true }, { "testid": 15, "flag" : true } ] }, { "variantid": 200, "tests": [ { "testid": 14, "flag" : true }, { "testid": 15, "flag" : false } ] }, { "variantid": 400, "tests": [ { "testid": 14, "flag" : true }, { "testid": 15, "flag" : true } ] }, { "variantid": 500, "tests": [ { "testid": 14, "flag" : true }, { "testid": 15, "flag" : true } ] } ] var testid = 15; var testobj ={}; (var = 0; < array1.length; i++) { if (array1[i].testid == testid) { testobj = array1[i]; break; } } console.log(testobj);
you use hash table , first true flags, filter child array.
function getchildren(data, flags, testid) { var hash = object.create(null), result; flags.foreach(function (a) { a.tests.foreach(function (b) { b.testid === testid && b.flag && (hash[a.variantid] = true); }); }); data.foreach(function (a) { if (a.testid === testid) { result = { child: a.child.filter(function (b) { return hash[b.variantid]; }) }; } }); return result; } var array1 = [{ testid: 15, child: [{ variantid: 100, name: "a1", }, { variantid: 200, name: "a2", }, { variantid: 300, name: "a3", }, { variantid: 400, name: "a4", }, { variantid: 500, name: "a5", }] }], array2 = [{ variantid: 100, tests: [{ testid: 15, flag: true }] }, { variantid: 200, tests: [{ testid: 15, flag: false }] }, { variantid: 400, tests: [{ testid: 15, flag: true }] }, { variantid: 500, tests: [{ testid: 15, flag: true }] }], array3 = [{ testid: 15, child: [{ variantid: 100, name: "a1", }, { variantid: 200, name: "a2", }, { variantid: 300, name: "a3", }, { variantid: 400, name: "a4", }, { variantid: 500, name: "a5", }] }], array4 = [{ variantid: 100, tests: [{ testid: 14, flag: true }, { testid: 15, flag: true }] }, { variantid: 200, tests: [{ testid: 14, flag: true }, { testid: 15, flag: false }] }, { variantid: 400, tests: [{ testid: 14, flag: true }, { testid: 15, flag: true }] }, { variantid: 500, tests: [{ testid: 14, flag: true }, { testid: 15, flag: true }] }], testid = 15; console.log(getchildren(array1, array2, testid)); console.log(getchildren(array3, array4, testid));.as-console-wrapper { max-height: 100% !important; top: 0; }
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