As seen above, a promise encapsulates the result of an asynchronous operation. You can use anyhow you want a promise: return from a function, use as an argument, assign to variables. That's the first benefit.The second big benefit is that promises can create chains to handle multiple ...
Read What is 'this' in JavaScript? and learn with SitePoint. Our web development and design tutorials, courses, and books will teach you HTML, CSS, JavaScript, PHP, Python, and more.
flatMap()is similar tomap(), but the callback can return an array, and the end result will be flattened one-dimensional array instead of nested arrays. constscattered=["my favorite","hamburger","is a","chicken sandwich"];// regular map() results in nested arraysconsthuh=scattered.map(ch...
in c and c++, the asterisk operator is used to declare and manipulate pointers. for example, int *ptr declares a pointer to an integer named ptr. what is pointer arithmetic in programming, and how is the asterisk used in it? pointer arithmetic is a type of arithmetic operation performed ...
A polyfill basically is a browser fallback piece of code which makes the modern browser based functionality available in older browsers too. This means that HTML5 and CSS3 functionality like “placeholder“, “Canvas”, “video”, “transform” etc can be used even on an old browser. So whi...
Visual Basic Code Example: Sending a Message Using an MS DTC External Transaction Tab Controls Reference Tab Controls Reference Shell Extensibility Shell Extensibility Property System ToolTip IObjectProvider Constants Constants Constants MSMQMessage.IsFirstInTransaction Hot Key Controls Overview Hot Key Controls...
Where can I add the Javascript safely, so it won't incur problems further down the line? Our website will be externally tested, so nosniff is already in place I'm not able to use the Blob storage although it sounds like a great option ...
What is an abstract method? In object-oriented programming, methods are programmed procedures included as part of a class. Methods can be included in any object in a class, and any class can have more than one method. In an object, methods only have access to the data known to that obje...
Once the runtime system receives the exception object, it searches through the next layers, seeking exception handler code that matches what is specified in the exception object. Here, the system's goal is to find the code (or rather, the block of code) through an ordered list of methods ...
.pdb files in production environment? 'An operation was attempted on a nonexistent network connection' error 'bootstrap' is not a valid script name. The name must end in '.js'. 'Cannot implicitly convert 'System.TimeSpan' to 'System.DateTime' 'DayOfWeek' is not supported in LINQ to E...