I am trying to pass a reference to a jQuery Object to a module and have been getting an error that says: Uncaught TypeError: undefined is not a function
I am working on a fiddle to try and understand this pattern that I saw, as well as to understand prototype and the new keyword.
I am not sure what is causing this error. Here's my HTML and JavaScript along with a fiddle.
HTML:
<div class="js-container" data-options="true"></div>
<div class="js-container" data-options="false"></div>
JavaScript:
$('.js-container').each(function (i, element) {
new MyClass($(element));
console.log($(element));
});
var MyClass = (function ($element) {
this.$element;
console.log(this.$element);
this.init();
MyClass.prototype.init = function () {
this.addText();
return this;
};
MyClass.prototype.addText = function () {
var optText = this.$element.attr('data-options');
this.$element.text(optText);
return this;
};
}());
I am trying to learn to write more module with JavaScript. So please let me know if I have anything else that is incorrect. Thanks!
You are defining MyClass after you run the code that uses MyClass. Also, stuffing your class into a variable rather than declaring it the "traditional" way causes some problems. Try this:
function MyClass ($element) {
this.$element;
console.log(this.$element);
// more code...
}
$('.js-container').each(function (i, element) {
new MyClass($(element));
console.log($(element));
});
Also, move your MyClass.prototype. definitions out of the actual MyClass. Put them after.
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