Exploring through JSON data

Question

Exploring through JSON data

Upon first glance, it seems like the answer to my question is quite simple. However, I've been struggling to find the exact information I need when searching for help.

I have a good understanding of how to loop over a JSON array. What I'm looking for is a solution where I can use a variable following 'finaldataset[i]' instead of a specific key in the JSON data.

function iterateOverJSON(s){
for(var i = 0; i<finaldataset.length; i++){
 console.log(finaldataset[i].s)
}
    }

Imagine finaldataset as an array containing movies and various attributes about each movie. I want the function to accept a parameter, like "director" or "movieLength," to display the desired information. Any assistance would be greatly appreciated.

javascript json loops

Answer 1

Answer №1

Try using square brackets instead of rounded ones

function loopThroughJSON(key){
  for(var i = 0; i<dataSet.length; i++){
   console.log(dataSet[i][key])
  }
}

Answer 2

Try using square brackets instead of rounded ones

function loopThroughJSON(key){
  for(var i = 0; i<dataSet.length; i++){
   console.log(dataSet[i][key])
  }
}

Answer 3

Answer №2

If you're in search of the most suitable method, Array.prototype.map should be your go-to choice. Take a look at this example:

function extractDataFromJSON(property) {
    return finalList.map(function(item) { return item[property]; });
}

// sample implementation
var names = extractDataFromJSON('name');
var ages = extractDataFromJSON('age');

Answer 4

If you're in search of the most suitable method, Array.prototype.map should be your go-to choice. Take a look at this example:

function extractDataFromJSON(property) {
    return finalList.map(function(item) { return item[property]; });
}

// sample implementation
var names = extractDataFromJSON('name');
var ages = extractDataFromJSON('age');

Exploring through JSON data

Answer №1

Answer №2

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