For example, a single query sent to a database is going to be atomic, but three separate queries aren’t atomic. Then again, if those three queries are wrapped in a database transaction, then the whole lot becomes atomic; either all three queries run successfully, or none run successfully...
In this case, thread management is done by the Kernel. There is no thread management code in the application area. Kernel threads are supported directly by the operating system. Any application can be programmed to be multithreaded. All of the threads within an application are supported within a...
JavaScript runs in a virtual machine, which is represented by theJSVirtualMachineclass. It’s very lightweight; the most important thing to know about it is that you can support multithreaded JavaScript by instantiating multipleJSVirtualMachines. Within eachJSVirtualMachinecan be an arbitrary number ...
There is also an Extension Wizard, which can simplify your work. The functionality for your Firefox add-on is going to be based, in part, on JavaScript, though the environment may not be one you recognize. For instance, your extension could consist of an XPCOM component, which has to be...
Better memory-layout (it’s faster to iterate memory that’s stored in a row) It can be easier to reason about control-flow SIMD code But the typical web-app isn’t going to be bottlenecked on the sort of algorithms that would benefit from those advantages. ...
is going to create a string like this: First Second an easy way to fix this problem is by having an empty first line, and appending the trim() method right after the closing backtick, which will eliminate any space before the first character: const string = ` First Second`.trim() Inte...
Ensuring consistency in distributed applications is a challenge. Here's how to use promises and keep everything on track
The web development arena is moving at a fast pace and has reached an advanced stage today. Python and Javascript making some significant contributions for almost three decades. Now, being a developer or a business if you are planning to pick one of these, then it’s going to be tough jus...
Suppose, for example, that you are going to be developing a web server and plan to use the Express framework (https://expressjs.com) to simplify the task. To get started, you might create a directory for your project, and then, in that directory type npm init. npm will ask you for...
V8 is not thread safe at all, Trace and Spider monkey pretend to be thread safe, but are not at all (you can’t access the same object from different threads, so i don’t see the point, i’m not going to be able to explain the users of my project that they have to be careful...