Array Length With Key-value, Js

I wrote this piece of code, that should parse the given paramUnparsed (which should be an array in the form: [key1=val1, key2=val2, .., keyn=valn]). function parseParams(paramUnp

Solution 1:

The "params" array which is created is an associative array. If you want to get the length of the associative array use

Object.keys(params).length;

Solution 2:

You are creating an array, but you are not using it as an array. You are using it as an object, which works as an array is also an object, but it means that the length of the array remains zero as you are not adding any array items.

Create an object, and count the items that you add to get the count:

function parseParams(paramUnparsed){
  varparams = {}, cnt = 0;
  for (var j = 0; j < paramUnparsed.length; j++) {
    if (paramUnparsed[j].split('=').length < 2) {
      // error ! bad input structure, ignoring params -params = undefined;
      break; // we don't have to return error, depending// on the function called and given params.

    }
    var key = paramUnparsed[j].split('=')[0];
    varvalue = paramUnparsed[j].split('=')[1];
    params[key] = value;
    cnt++;
  }

  console.log("In parseParams, params are: "+ concatObject(params));//DEBUG 1
  console.log("In parseParams, params length is: "+ cnt);//DEBUG 2returnparams;  
}

Solution 3:

You're not really building an array. Arrays shouldn't have keys. You can use an object like this:

varparams = {};

but that wouldn't solve your .length issue.

What you can also do is building an array of objects, where each object contains a key and value. Something like this:

function parseParams(paramUnparsed){
    varparams = [];
    for (var j = 0; j < paramUnparsed.length; j++) {
        if (paramUnparsed[j].split('=').length < 2) {
            params = undefined;
            break;
        }

        var key = paramUnparsed[j].split('=')[0];
        varvalue = paramUnparsed[j].split('=')[1];
        params.push({ key: key, value: value });
    }

    // use like: `params[0].key` etcreturnparams; 
}

Solution 4:

Here is some thing odd. This actually holds together.

var arr = [];
arr["test"] = "something";
arr[arr.length]=arr["test"];

Now you have a key value array you kay loop through by key or by index. Also the length property is abailable.