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I am defining a class in javascript using this...
// file_a.js function class_a() { this.prop1 = null; this.prop2 = null; } // file_b.js var obj = new class_a; // I need to check here if class_a exists How can I do this?
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In vanilla JavaScript, you can use the contains() method provided by the classList object to check if any element contains a specific CSS class. This method returns true if the class exists, otherwise false .
The hasClass() method checks if any of the selected elements have a specified class name. If ANY of the selected elements has the specified class name, this method will return "true".
JavaScript classList is a DOM property of JavaScript that allows for styling the CSS (Cascading Style Sheet) classes of an element. JavaScript classList is a read-only property that returns the names of the CSS classes.
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