CODEWITHSUNDEEP
javascriptloops
lovemyjob
lovemyjob

Reputation: 579

For loop inside object definition inside Constructor function

How do I loop through parameter [array], to create object properties?

As soon as I try to put for loop inside object declaration, it throws a lot of errors.

Is there any other way to do it?

Expected outcome is to loop through parameterArray and based on the length, create i amount of datasets.

function Constructor (parameterArray, fill, labels) {
  this.parameterArray = parameterArray;
  this.fill = fill;
  this.labels = labels;

    var object = {
    name: {
        label: labels
    },
    datasets: [
    for (i=0; i<parameterArray.length; i++;) {
        type: parameterArray[i]
      fill: true;
      };
    ]
  }
};

var parameterArray = ["why", "u", "no", "work"];
var fill = true;
var labels = [1,2,3,4];



var helpme = new Constructor (parameterArray, true, labels);

Upvotes: 1

Views: 2783

Answers (1)

Fathy
Fathy

Reputation: 5199

Use .map to map each entry in the array to another one (I omitted parameter as it seems undefined) :

function Constructor (parameterArray, fill, labels) {
  this.fill = fill;
  this.labels = labels;

  this.dataset = {
    name: {
      label: labels
    },
    datasets: parameterArray.map(type => ({
      type, fill: true
    }))
  }
};

var parameterArray = ["why", "u", "no", "work"];
var fill = true;
var labels = [1,2,3,4];



var helpme = new Constructor (parameterArray, true, labels); 

console.log('De nada', helpme)

Upvotes: 4

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