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javascript:compare two arrays and returns match

Tejano answered on July 31, 2019 Popularity 8/10 Helpfulness 4/10

answer javascript:compare two arrays and returns match

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javascript:compare two arrays and returns match

Comment

function select(arr, obj) {
  const result = {};
  for (let name of arr) {
    if (name in obj) {
      result[name] = obj[name];
    }
  }
  return result;
}

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: arrays javascript match

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Contributed on Sep 11 2022

Tejano

0 Answers Avg Quality 2/10

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comparing two arrays in javascript returning differences

Comment

function arrayDiff (a1, a2) {
    var a = [], diff = [];
    for (var i = 0; i < a1.length; i++) {
        a[a1[i]] = true;
    }
    for (var i = 0; i < a2.length; i++) {
        if (a[a2[i]]) {
            delete a[a2[i]];
        } else {
            a[a2[i]] = true;
        }
    }
    for (var k in a) {
        diff.push(k);
    }
    return diff;
}
//usage:
console.log(arrayDiff(['red', 'white','green'], [ 'red','white', 'blue']));//["green", "blue"]

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jul 31 2019

Grepper

0 Answers Avg Quality 2/10

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javascript:compare two arrays and returns match

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javascript:compare two arrays and returns match

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comparing two arrays in javascript returning differences

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