update json where id = x

uzii answered on March 15, 2023 Popularity 1/10 Helpfulness 8/10

answer update json where id = x

update json where id = x

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A plain JavaScript solution, assuming jsonObj already contains JSON:

Loop over it looking for the matching Id, set the corresponding Username, and break from the loop after the matched item has been modified:

for (var i = 0; i < jsonObj.length; i++) {
  if (jsonObj[i].Id === 3) {
    jsonObj[i].Username = "Thomas";
    break;
  }
}

Here's the same thing wrapped in a function:

function setUsername(id, newUsername) {
  for (var i = 0; i < jsonObj.length; i++) {
    if (jsonObj[i].Id === id) {
      jsonObj[i].Username = newUsername;
      return;
    }
  }
}

// Call as
setUsername(3, "Thomas");

Popularity 1/10 Helpfulness 8/10 Language javascript

Source: Grepper

Tags: javascript json where

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Contributed on Mar 15 2023

uzii

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