An array in Javascript that contains sub-arrays within its keys

I am encountering an issue with my array structure. The main array contains sub-arrays and uses custom keys as identifiers. However, I am unable to access the array using these keys. For example, when I try to get the length of the array, it returns 0 even though there are values present.

Upon checking in the console:

[evt1: Array[0], evt2: Array[0]]
evt1: Array[0]
evt2: Array[0]

Interestingly, when I revert back to standard indices (0,1,2), I can access the array without any issues. Can anyone shed light on why this is happening?

Thank you

javascriptarrays

Answer №1

In response to the previous comments, it should be noted that you are actually working with an object rather than an array. To determine the length of the object, use Object.keys(your_object).length and iterate through its indexes using the following code:

for(var index in your_object){
    console.log(index,your_object[index]);
}

Another option is to use the code snippet below:

var indexes=Object.keys(your_object);
for(var i=0;i<indexes.length;i++){
    console.log(indexes[i], your_object[indexes[i]]);
}

Answer №2

In JavaScript, arrays have the ability to have properties similar to objects. However, these array properties do not impact the length of the array itself. For a more organized approach, consider using an object as the main structure and store your arrays within it.

{event1: Array[0], event2: Array[0]}

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