When you wrap your JavaScript code in a function like this: (function(){ var field = …; function doSomthing(){… … })(); I noticed that this fixes scoping problems for me on a lot of web pages. What is this practice called? Answer The pattern is called self-invocation, a self-invoking function. It can create a closure, but … Read more
What are REST resources and how do they relate to resource names and resource representations? I read a few articles on the subject, but they were too abstract and they left me more confused than I was before. Is the following URL a resource? If it is, what is the name of that resource and … Read more
I’m tempted to lie and say that English is my second language, but the truth is that I just have no idea what ‘Coalescing’ means. I know what ?? ‘does’ in C#, but the name doesn’t make sense to me. I looked up the word and I understand it to be a synonym for ‘join’. … Read more
Can someone please tell me what a finite state transducer is? I have read the Wikipedia article and don’t understand a thing. Answer A finite state transducer (FST) is a finite state automaton (FSA, FA) which produces output as well as reading input, which means it is useful for parsing (while a “bare” FSA can … Read more
I’m trying to figure out what this sort of thing is called, and eventually how I can create one in a web browser. It looks like this (screenshot of the first app that came to mind): The specific component/pattern I’m looking for is the two list boxes (“Included Gear” and “Excluded Gear”) that represent inclusion/exclusion … Read more
I’ve just started hearing the term OSGi being used (while reading tutorials on common Java EE containers such as GlassFish and Spring), however I have been unable to find a simple, straight-forward, easy-to-understand explanation of what OSGi is that an enterprise novice such as myself would understand. Can someone provide such a dummy-proof explanation? Maybe … Read more
I wonder not only what is Facet but also what is Facet ‘in physical level’ (as I understand it’s not a separate jar, but what?)? I also wonder how can it affect my application after deploying. I’ll explain on real example: I had 2 facets (which were created by IDE): Spring Facet and Web Facet … Read more
During a reactJS session that I was attending, the presenter used a term transpiler for some code conversion/porting happening. I’ve always used and heard the terms compiler and interpreter when it comes to converting a language code to a runnable form on a computer system/machine. Transpiler is new to me. How is a transpiler different … Read more
I have heard this concept used frequently, but I don’t have a really good grasp of what it is. Answer Converting an object in memory into a format that can be written to disk, or sent over the wire, etc. Wikipedia’s description. AttributionSource : Link , Question Author : Brian G , Answer Author : … Read more
This question already has answers here: Closed 9 years ago. The community reviewed whether to reopen this question 3 months ago and left it closed: Original close reason(s) were not resolved Possible Duplicate: Advantages of using forward Could someone please explain to me what perfect forwarding is about? Answer http://www.justsoftwaresolutions.co.uk/cplusplus/rvalue_references_and_perfect_forwarding.html Why is this useful? Well, … Read more
