Transforming a JSON object property value from an array into a string using JavaScript

Question

Transforming a JSON object property value from an array into a string using JavaScript

I am facing an issue with an API call I am using, as it is sending objects with a single property that contains an array value (seen in the keys property in the response below). However, I need to work with nested arrays in order to utilize the outputted values in another application format like this:

[[value1, value2, value3, value4],[value1, value2, value3, value4]]

. I am considering asking another question specifically addressing the conversion to nested arrays, unless there is an easy fix that someone can suggest (it seems like using .map might help convert the object).

This is the current format of my objects (as seen in console.log(searchQueries)):

[ { keys: [ 'hammer' ],
    clicks: 1369,
    impressions: 3151,
    ctr: 0.4344652491272612,
    position: 1.004443033957474 },
  { keys: [ 'woodmaking' ],
    clicks: 207,
    impressions: 6324,
    ctr: 0.03273244781783681,
    position: 4.35831752055661 },
  { keys: [ 'house trends' ],
    clicks: 1,
    impressions: 3,
    ctr: 0.3333333333333333,
    position: 4.666666666666666 },
  { keys: [ 'housing' ],
    clicks: 1,
    impressions: 36,
    ctr: 0.027777777777777776,
    position: 6.472222222222222 } ]
byProperty

The above response is generated from the following for-in loop iterating through the API response array originally nested in an object:

for (var prop in res){
          searchQueries = res[prop];

          console.log(searchQueries);
}

Could the JSON.stringify method or .toString('keys') accomplish what I am trying to achieve?

javascript json

Answer 1

Answer №1

Converting keys from an array to a string is simple: just loop through the array and update the values accordingly:

searchQueries.forEach(function (item) { item.keys = item.keys[0] })

Answer 2

Converting keys from an array to a string is simple: just loop through the array and update the values accordingly:

searchQueries.forEach(function (item) { item.keys = item.keys[0] })

Answer 3

Answer №2

let searchResults = Object.values(searchQueries).map(item => {item.keys = item.keys[0]; return Object.values(item)});
console.log(searchQueries);

https://jsbin.com/tegijavuto/3/edit?console

Iterate through the main array, convert the keys array of each object into a string, then transform the entire object into an array of its values. Note that Object.values is still experimental, so consider transpiling this code to ES5:

let answerArr = [];
for(let key in searchQueries){
  answerArr.push(searchQueries[key]);
}
const resultArray = answerArr.map(function(entry){
  entry.keys = entry.keys[0];
  let newArray = [];
  for(let objKey in entry){
    newArray.push(entry[objKey]);
  }
 return newArray;
});

Answer 4

let searchResults = Object.values(searchQueries).map(item => {item.keys = item.keys[0]; return Object.values(item)});
console.log(searchQueries);

https://jsbin.com/tegijavuto/3/edit?console

Iterate through the main array, convert the keys array of each object into a string, then transform the entire object into an array of its values. Note that Object.values is still experimental, so consider transpiling this code to ES5:

let answerArr = [];
for(let key in searchQueries){
  answerArr.push(searchQueries[key]);
}
const resultArray = answerArr.map(function(entry){
  entry.keys = entry.keys[0];
  let newArray = [];
  for(let objKey in entry){
    newArray.push(entry[objKey]);
  }
 return newArray;
});

Answer 5

Answer №3

Step One: Retrieve the keys values

var extractedKeys = searchQueries.map(function(item){return item.keys;});

The output after this step will be:

[["apple"], ["banana"], ["orange"], ["grape"]]

Step Two: Combine the resulting array

var combinedValues = extractedKeys.join(',').split(',');

After combining, the result will be:

 ["apple", "banana", "orange", "grape"]

Answer 6

Step One: Retrieve the keys values

var extractedKeys = searchQueries.map(function(item){return item.keys;});

The output after this step will be:

[["apple"], ["banana"], ["orange"], ["grape"]]

Step Two: Combine the resulting array

var combinedValues = extractedKeys.join(',').split(',');

After combining, the result will be:

 ["apple", "banana", "orange", "grape"]

Transforming a JSON object property value from an array into a string using JavaScript

Answer №1

Answer №2

Answer №3

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