Decoding JSON by Parsing a Targeted Input String

Question

Decoding JSON by Parsing a Targeted Input String

Currently, Facebook API is delivering an array to me in this specific format:

to[0]=10100811338393761,to[1]=10100919262065481,...

I'm wondering if anyone has any ideas on how I can convert that into a JSON array using JavaScript?

Edit: To provide further clarity...

Facebook sends back an array of users who have received requests through the callback URL (view documentation here). It's returned in a URI format like so:

to%5B0%5D=10100811338393761....

After cleaning it up using decodeURIComponent, the code snippet I've shared is what remains.

My goal is to parse this into a JSON object to access the IDs, but whenever I attempt to use JSON.parse, I encounter errors ("unexpected [" or "unexpected =").

javascript json

Answer 1

Answer №1

If the function returns PRECISELY as you described:

function convertToArray(input){
    var splitArray = input.split(/to\[[0-9]{1,}\]=(.*?),*?/g));
    var resultArray = [];
    if(!splitArray) return resultArray;
    for(var index = 0; index < splitArray.length; index++)
      if(splitArray[index] != '') resultArray.push(splitArray[index].replace(/,/g, ''));     
    return resultArray;
}


convertToArray('to[0]=10100811338393761,to[1]=10100919262065481')[0]
                === '10100811338393761'; // true

UPDATE: Rectified a regex bug. Improved formatting also.

Answer 2

If the function returns PRECISELY as you described:

function convertToArray(input){
    var splitArray = input.split(/to\[[0-9]{1,}\]=(.*?),*?/g));
    var resultArray = [];
    if(!splitArray) return resultArray;
    for(var index = 0; index < splitArray.length; index++)
      if(splitArray[index] != '') resultArray.push(splitArray[index].replace(/,/g, ''));     
    return resultArray;
}


convertToArray('to[0]=10100811338393761,to[1]=10100919262065481')[0]
                === '10100811338393761'; // true

UPDATE: Rectified a regex bug. Improved formatting also.

Decoding JSON by Parsing a Targeted Input String

Answer №1

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