In the JavaScript world, almost everything you see is an object. If you understand objects, you understand Javascript. There are lots of static methods where you can create objects, copy objects, seal ...

The reduce() method takes two parameters: a callback function and an optional initial value. In the callback function, it takes an accumulator as its first parameter and the value of the current array ...

Most methods are async by default. All async methods will return a promise if the callback isn't passed. Sync methods on the other hand will throw if an error occurs ...

The indexOf() method returns the first index of the element in the array, if the searching element is not present in the array then it returns -1. num.indexOf(3); // 2 num.indexOf(6); //-1 num.indexOf ...

Obfuscator.io adds VM-based bytecode obfuscation to this package - your JavaScript functions are compiled to custom bytecode that runs on an embedded virtual machine. Each build produces unique ...