By the end of 2013 Firefox launched a tool called Black Box to their browser inspector. About a year later, Chrome did the same. If you need to carry out debugging in your code but don’t know about black boxing scripts then you should definitely give this post a read.
After a recent domain change at my workplace one of the API endpoints became inaccessible due to some configuration problems resulting in incorrect behavior in regards to cross-origin resource sharing policy. It interfered with one non-critical function of the website and was a bit of a nuisances but not big enough for back-end team to prioritize fixing it.
Event delegation is a pattern of adding an event listener to a parent node instead, of adding an event listener to the individual node. The added event listener will check for the bubbled event to find matching child element. In this article we will talk about how to implement an event listener using very trending method in JavaScript i.e., event delegation pattern.
Spread syntax which is used by typing three dots (…) in JavaScript. It allows an array expression or string or anything which can be iterating to be expanded in places where zero or more arguments for function calls or elements for array are expected. It can also be used for an object expression to be expanded in places where zero or more key-value pairs for object are expected.
The arguments object is an Array-like object matching to the arguments passed to a function. The arguments object is a local variable available within all (non-arrow) functions. You can refer to a function’s arguments within the function by using the arguments object.
In any programming language we often require having default parameter or default value for the parameter in a function. JavaScript allow us to initialize parameter a default value. If you are not passing any value to the parameter, then the default value of the parameter will be undefined.
A while ago i was Searching, if it’s possible to use NativeScript and Angular with Android Wear. It’s possible, easy to setup in 5 steps and with FlexBox in NativeScript you can even handle small screens.
Four new feature proposals for the specification underlying JavaScript are finalized and four others are under consideration
Promises are in many ways the logical next step from callback. A promise is just a special object that promise to either resolve, or throw an exception.