How to update values in arrays of objects in JavaScript? [duplicate]

Question

I want to change values of array of objects. The keys 1,2 are dynamic and come from json.

var rows = [
  {
    "1": "14",
    "2": "55",
    "named": "name1",
    "row": 7
  },
  {
    "1": "15",
    "2": "56",
    "named": "nameper",
    "row": 9
  },
  ...
]

to. The name having nameper should have per cent values.

[
    {
      "1": "14",
      "2": "55",
      "named": "name1",
      "row": 7
    },
    {
      "1": "15%",
      "2": "56%",
      "named": "nameper",
      "row": 9
    },
    ...
  ]

Kirisanth Senthilnathan · Accepted Answer · 2022-10-10 10:26:48Z

0

rows.map((singleItem) => {
   if(singleItem.named === "nameper"){
      singleItem["1"] = singleItem["1"] + "%";
      singleItem["2"] = singleItem["2"] + "%";
   }
})

answered Oct 10, 2022 at 10:26

Kirisanth Senthilnathan

1871 silver badge5 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

jasie Over a year ago

Arun V was a little faster than you, making your answer a duplicate

Tantary Tauseef · Accepted Answer · 2022-10-10 10:35:42Z

0

You can use forEach or map or a for-loop

Using forEach.

rows.forEach((row) => {
    if (row["named"] === "nameper") {
        row["1"] = row["2"] + "%";
        row["2"] = row["2"] + "%";
    }
})

You can use map in a similar way!

Using for loop

for (var row of rows) {
    if (row["named"] === "nameper") {
        row["1"] = row["2"] + "%";
        row["2"] = row["2"] + "%";
    }
}

edited Oct 10, 2022 at 10:35

answered Oct 10, 2022 at 10:29

Tantary Tauseef

17610 bronze badges

Comments

ARUN V · Accepted Answer · 2022-10-10 11:40:33Z

0

rows.map(row => {
    if(row["named"] === "nameper") {
          row["1"] = `${row["1"]}%`
          row["2"] = `${row["2"]}%`
    }
})

you can use a map and check for the named and update it accordingly

edited Oct 10, 2022 at 11:40

answered Oct 10, 2022 at 10:45

ARUN V

113 bronze badges

Collectives™ on Stack Overflow

How to update values in arrays of objects in JavaScript? [duplicate]

3 Answers 3

1 Comment

Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

Comments

Linked

Related