RubyGems were developed to simplify and accelerate the stages of the application creation deployment and library connection. Utilizing this package manager for Ruby saves you time as you get ready-made solutions to almost any task instead of writing the functions from scratch. Each gem contains a particular element of functionality including all related files. Unfortunately they aren structured in any way so in order to find ruby gems it better to use a regular search engine and the required key words (check GitHub s ). Our dedicated development team also actively employs Ruby Gems in the process of software development. Here is the top of the most popular and useful ruby gems according to our experience GeoCoder s . Being able to connect through itself over 4 APIs this Ruby gem implements both the direct and reverse geocoding by IP address geographical coordinates and even real physical addresses (e.g. the address of the street). Bullet s . The most downloaded Ruby gems out there. It was initially created with an intention to boost software performance. It does so by decreasing the total amount of client-server requests. Basically Bullet tracks the N+1 cases of requests and notifies the developer when other tools can be used instead (e.g. cache counter). Pry s . We rmend to simplify the bug fixing procedures for your RoR-based application with the Pry gem which is a more advanced alternative to the standard IRB wrapper. ActiveModelSerializers s (which starts lagging while processingpound documents) and uses caching. Fast JSON API s . Fast JSON API wille in handy when you need fast serialization of software code. It works much faster than Wicked PDF s . This gem is working alongside with wkhtmltoPDF s and helps realizing an interaction with the DSL generator. Devise Masquerade s . This Ruby gem helps developing multi user apps. In particular youll be able to test your app from the perspective of users with different levels of access. Devise s . Based on the MVC model the Devise gem can provide secure user authentication and session management. Letter opener s . If you need to create a newsletter mechanism to send notifications to all users that launched your app this gem will help you do that much easier you won need to integrate and configure your own SMTP server. Money Rails s . If you are planning to integrate your app with Ruby Money this gem wille in quite handy. Pundit s . A tool that allows defining different levels of access to the app functionality according to the rights of an authorized user.
Why does everyone use PDF even when Adobe Acrobat is so expensive? It forces me to subscribe to it, since everyone sends files in PDF. being a student, how can i afford it
Everyone uses PDF because it has be the standard way of sending a document around that has the look of the printed page. The idea is that the document should not be easily changed but can be marked up easily. It should be easy to generate a PDF from an application program and easy to mark up a PDF in a review process. It should also be easy to sign. But to modify the document contents? That should not be easy. So the software to view and annotate PDFs is free. All programs support creation of a PDF from an application software so that is free. Signing and annotating is free too. But editing costs money. That how it should be. If you have a Mac you already have what you need in Preview which can add PDF pages. Most people can get by with those features and even if they can there are so many low-cost options besides Adobe that you can use. Adobe offers discounts to students so you should check with them. Here are prices as of mid-22 in USA Adobe Acrobat Pro DC - $18 PDF element - $13 FoxIt - $18 PDF Expert (Mac only) - $8 (3 Macs) There are many more. You can also stick with the free software and only pay by the document for the rare occasion you need to do something special. I hope this helps.
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What are the necessary things to do in 4 years of B.Tech in CSE course?
In India at least most of us waste our 4 years in college. Unfortunately that is the best time to learn while doing your job later you will be so absorbed in your work that you will barely find time for yourself forget using that time to learn something. So utilize this time to its fullest. There are no hard and fast rules as to what is necessary and what is not however the following things if learnt practiced and internalized will enable you to stand apart in your professional career quickly. Learn C++. Yes not Python Java or Lisp. All languages have their own nuances and have their own areas of usage. However C++ teaches you programming fundamentals in a way which is nigh impossible in any other language. Yes Python is easiest to pick up and gaining momentum for large scale tasks but because it is so easy it masks you from the arcaneplexities of s and memory management. After swearing by Python for 4 years when you start working in Microsoft Edge team you will be clueless to find that your seemingly innocuous code prompted 3 code-reviewments to make it more efficient and memory-amenable. So learn C++ it will teach youputer fundamentals like nothing else. Start with the basic books like those by Herbert Schildt then gradually graduate to the ones by Herb Sutter and Scott Meyers. You will be awestruck at the confidence you gain once you have mastered C++. Learn at least one build system. This is often understated and to my knowledge most universities don even bother including any course on this topic. But this is an absolute sine qua non. You will be working inpanies like Microsoft and Google and Amazon which operate on unimaginable scales catering to million requests per second. The codebase that powers such aplicated system is equallyplicated and nuanced to manage it a robust build system needs to be in place. All those who are used to code in a lone IDE in their lone laptop at home find themselves at sea when they suddenly find that a code-review followed by code-push is not sufficient they are expected to take that code to production by building it in the pipelines open multiple gates to push them from one stage to another resolve merge conflicts ensure that the test code is running correctly get sign-off from QA before the final gates are opened etc. Trust me it is overwhelming. Allpanies have their own build-systems so it is not possible to learn all of them. However all of them have the basic ideas similar so if you know one build-system inside-out suffices to say that you know them all. Which one should you learn? Any one really. But I prefer Ant. It is very easy to learn and there are some excellent resources to learn Ant like the OReilly books. If during your first week in Amazon you not onlyplete the feature you were assigned but also take it to production by building it in the pipelines all by yourself your manager will be suitably impressed! Contribute to Open Source projects. It may be anything really. May be you fell in love with Qt and wrote a cool desktop app in Qt that lets you sign on a pixel map through your touchpad and using patented algorithms find out if that is indeed your signature. Publish it in Github implore Qt to highlight it in their Sample Apps built with Qt section. If they do you have be famous! If they don well you get a taste of the bar you will be expected to meet in your professional career. Not getting ideas of your own? Take any open source project out there. May be Poco a versatile C++ library. Contribute to it. They are looking for new hands for some of their modules like PDF support be that hand. There are millions of lines of code already in place your code has to be built on top of that it will require you to understand the existing codebase inside out before you start working on top of it. This is a skill you will need to have from day 1 be it Google or Microsoft. Wouldn it be cool if you can understand the entire Edge workflow by yourself and make code changes on top of it during your first week in Microsoft instead of asking a senior for a KT (knowledge transfer) and being able to work only after that? Participate in codingpetitions. You don have to be topper in Codejam or Topcoder or Codechef. Spoj will suffice. Very few teams in verypanies actually require algorithmic and data structure knowledge. But this is what is mainly asked in interviews. So if you are tired of your work in Google and want to switch to Microsoft you don have to spend three months preparing for the interview by going through Gayle Lackmann and Leetcode (because you have forgotten how to traverse binary tree in pre-order fashion without recursion. Your 3 year work in Google never required these stuff!). You are a regular in Spoj such problems are child play for you! So you can crack the interview tomorrow itself and bid Google adieu in no time. Wicked! ordered-list Last but not the least stay focussed as Balaji said in his answer. It seems trivial but it is the hardest. You will find your friends writing CAT or GRE or GMAT. Some just scored a perfect 1 percentile and had to open an Instagram account to post a picture of that result. Some scored a 1595 in SAT. Don let their achievements sway you into thinking that you are missing out on the cool things that you should devote part of your time to preparing for CAT as well. Stay focussed stay good on your goals. You will kill them all!