Compare and sort array using javascript

Question

For the following

array1 = [{
        "x": 0,
        "y": 1,
        "z": 1,
        "i": "chart1"
         }, {
        "x": 0,
        "y": 2,
        "z": 1,
        "i": "chart2"
         }, {
        "x": 1,
        "y": 1,
        "z": 1,
        "i": "chart3 "
    }
]

array2 = [{
        "x": 1,
        "y": 1,
        "z": 1,
        "i": "chart1"
        }, {
        "x": 0,
        "y": 1,
        "z": 1,
        "i": "chart2"
        }, {
        "x": 0,
        "y": 2,
        "z": 1,
        "i": "chart3"
    }
]

compare x and y of array1 and array2 and find the position if it is equal and return the set of array of i value.

i.e in above case it should return:

array3=["chart2","chart3","chart1"]

I have a json as below:

json = [{
        "visType:" bar "," visName ":" chart1 "},{" visType: "bar",
        "visName": "chart2"
    }, {
        "visType:" Pie "," visName ":" chart3 "}]

And this need to be sort based on array3 = ["chart2","chart3","chart1"] the output should be as in updated json

updatedjson = [{
        "visType:" bar "," visName ":" chart2 "},{" visType: "Pie",
        "visName": "chart3"
    }, {
        "visType:" bar "," visName ":" chart1 "}]

I need a solution using lodash or javascript.

what you have tried please share the codebase we will look into it. thanks — Saikat Hajra
– Saikat Hajra, Commented Mar 7, 2018 at 20:48

funkizer · Accepted Answer · 2018-03-08 13:56:28Z

1

const array3 = [...array1, ...array2].filter(({x,y}) => x===y);
const updatedjson = array3.map(({i}) => json.find(({visName}) => i === visName));

Edit: Fixed the input data which was full of syntax errors:

var array1 = [{ "x": 0, "y": 1, "z": 1, "i": "chart1" }, { "x": 0, "y": 2, "z": 1, "i": "chart2" }, { "x": 1, "y": 1, "z": 1, "i": "chart3" }];
var array2 = [{ "x": 1, "y": 1, "z": 1, "i": "chart1" }, { "x": 0, "y": 1, "z": 1, "i": "chart2" }, { "x": 0, "y": 2, "z": 1, "i": "chart3" }];

var json = [
    { "visType": "bar", "visName": "chart1" },
    { "visType": "bar", "visName": "chart2" },
    { "visType": "Pie", "visName": "chart3" }
];

const array3 = [...array1, ...array2].filter(({ x, y }) => x === y);
const updatedjson = array3.map(({ i }) => json.find(({ visName }) => i === visName));
console.log(array3);
console.log(updatedjson);

edited Mar 8, 2018 at 13:56

answered Mar 7, 2018 at 20:54

funkizer

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3 Comments

funkizer Over a year ago

Did i pass the class? xD

gautham shetty Over a year ago

No the answer is not matching :)

funkizer Over a year ago

Yes it does. Your input data is all messed up & full of syntax errors like missing quotes. Once you fix those, my code works ;)

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