JavaScript's square bracket notation is commonly used to access nested objects within an object

My goal is to accomplish the following:

this.inputs[options.el.find('form').attr('class')] = {};

this.inputs[options.el.find('form').attr('class')][options.elements[x].selector] = false;

Unfortunately, I'm facing a syntax error while trying to execute the above code!

Do you have any suggestions on how I can create this Object structure successfully?

Answer №1

The syntax appears to be valid, however the usage of long one-liners is not helpful for anyone. It would be beneficial to separate the code into smaller chunks to easily identify any issues.

var className = options.el.find('form').attr('class');
var selector = options.elements[x].selector;

this.inputs[className] = {};
this.inputs[className][selector] = false;

Answer №2

It is crucial that the index of an object is always represented as a string:

var obj = {
  a: 2;
}

obj.a = 3; //a now equals 3
obj['a'] = 4;//now a equals 4

You mentioned that options.elements[x].selector is input[name="username"], so it seems like in this line:

this.inputs[options.el.find('form').attr('class')][options.elements[x].selector] = false;

What you actually intend to achieve is:

this.inputs[options.el.find('form').attr('class')]['username'] = false;

To accomplish this, you can modify the code in the following way:

var sel = options.elements[x].selector;
console.log( 'sel is ' + sel );
this.inputs[options.el.find('form').attr('class')][sel] = false;

Ensure that sel is indeed a string. You might want to experiment with

var sel = options.elements[x].selector.value;

The .value part extracts the text from within an input element.

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