ES6 | ES6 study notes and code exercises | Script Programming library

 by   SimplyWenjing JavaScript Version: Current License: No License

kandi X-RAY | ES6 Summary

kandi X-RAY | ES6 Summary

ES6 is a JavaScript library typically used in Programming Style, Script Programming applications. ES6 has no vulnerabilities and it has low support. However ES6 has 1 bugs. You can download it from GitHub.

ES6 study notes and code exercises
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            kandi-support Support

              ES6 has a low active ecosystem.
              It has 314 star(s) with 140 fork(s). There are 25 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 2 open issues and 6 have been closed. On average issues are closed in 78 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of ES6 is current.

            kandi-Quality Quality

              ES6 has 1 bugs (0 blocker, 0 critical, 1 major, 0 minor) and 0 code smells.

            kandi-Security Security

              ES6 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              ES6 code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              ES6 does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              ES6 releases are not available. You will need to build from source code and install.
              ES6 saves you 10 person hours of effort in developing the same functionality from scratch.
              It has 29 lines of code, 0 functions and 10 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of ES6
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            ES6 Key Features

            No Key Features are available at this moment for ES6.

            ES6 Examples and Code Snippets

            No Code Snippets are available at this moment for ES6.

            Community Discussions

            QUESTION

            Non-test TypeScript files not processed by TS-Jest. Cannot find module with absolute path during runtime
            Asked 2021-Jun-14 at 15:04

            I have a project with E2E tests setup with Playwright + TS-Jest. To organize my tests I use Page Object Model. Structure looks like that:

            I wanted to use TypeScript paths option in tsconfig.json to clean up the imports both in test files as well as in POM classes. After some trial and error I came up with the following config files:

            ...

            ANSWER

            Answered 2021-Jun-14 at 15:04

            I've managed to find solution in this GitHub issue: https://github.com/kulshekhar/ts-jest/issues/1107#issuecomment-559759395

            In short, by default ts-jest transform is invoked later than it should, so doesn't have a chance to process all the files. The tsconfig-paths can help with that:

            1. Install above package with yarn add --dev tsconfig-paths
            2. In global-setup file add require('tsconfig-paths/register'); at the very beginning of the file.

            All the absolute imports should work.

            Source https://stackoverflow.com/questions/67889450

            QUESTION

            es6/7 shorthand for assigning properties from object to HTMLElement
            Asked 2021-Jun-14 at 13:54

            What would be a shorthand for the following:

            ...

            ANSWER

            Answered 2021-Jun-14 at 13:54

            I'm assuming that you are looking for the least-verbose way of doing this.

            Most likely this would be achieved by using Object.assign:

            The Object.assign() method copies all enumerable own properties from one or more source objects to a target object.

            in your case, the target object is element and the only source object here would be config:

            Source https://stackoverflow.com/questions/67970922

            QUESTION

            Why does this proxy handler cause infinite recursion?
            Asked 2021-Jun-14 at 07:24

            I built a hook for the toString method using ES6 Proxy. While debugging some issues I noticed the console.log of handler getting called for no reason.

            ...

            ANSWER

            Answered 2021-Jun-14 at 07:24

            Inside the handler, you call console.log(target, thisArg, args); where target and thisArg are functions. The devtools console appears to use .toString() to get the name of the function to display it.

            Source https://stackoverflow.com/questions/67965110

            QUESTION

            Reuse Jest module mocks across tests
            Asked 2021-Jun-10 at 15:37

            I want to mock a module for a test. Everything works, but I have to copy/paste the same code into every test file. How can I make this more maintainable?

            (This is using Babel and TypeScript in a Next.js project.)

            The production code looks like this:

            ...

            ANSWER

            Answered 2021-Jun-10 at 15:37

            Maybe using the __mock__ directory can help you.

            from the docs:

            Manual mocks are defined by writing a module in a mocks/ subdirectory immediately adjacent to the module. For example, to mock a module called user in the models directory, create a file called user.js and put it in the models/mocks directory.

            You can also mock modules from the node_modules directory.

            Manual Mocks

            Source https://stackoverflow.com/questions/67924167

            QUESTION

            Does the v8 engine update only new features whenever ECMAScript language specification is new?
            Asked 2021-Jun-10 at 09:51

            As far as I know, the v8 engine is based on ECMAScript language specifications, do you develop it with a new ECMAScript whenever a new ECMAScript is released?

            Or do we add only the newly added functions?

            For example, if you look at ES5 -> ES6, in the case of Execution Context, the components change, but do you change all of them?

            ...

            ANSWER

            Answered 2021-Jun-10 at 09:51

            (V8 developer here.)

            Both the ECMAScript standard itself and engines' implementations of it evolve by adding individual features one by one.

            The "TC39" committee discusses new proposed features. Once a feature has been agreed upon, it is added to the standard (see the "Process" document @Bergi linked in his comment for more details). The yearly "releases" of ECMAScript are just snapshots of this continuous process.

            Engines typically implement a new feature either shortly before it is finalized (so that implementation feedback can inform the standardization discussion) or shortly after.

            Rewriting an entire JavaScript engine from scratch every year would be a huge waste of effort: most of the language doesn't change. Also, rewriting an entire JavaScript engine from scratch would take many years. (In fact, rewriting any software from scratch is almost always a bad idea, because you'll spend a huge amount of time just catching up with what the old version was able to do. Incremental improvements are almost always the better strategy.)

            The majority of engine developers' time is typically spent on improving support for existing features and subsystems (compilers, garbage collectors, internal object model, ...), such as making them faster or more memory efficient.

            Source https://stackoverflow.com/questions/67917672

            QUESTION

            Target all link by parent class, add "rel" attribute to link (without jQuery)
            Asked 2021-Jun-09 at 16:29

            I have this Codepen demonstrating how to do it with jQuery. I tried to do it with vanilla Javascript but couldn't get it to work. How would you go about this in plain ES6?

            HTML:

            ...

            ANSWER

            Answered 2021-Jun-09 at 16:29

            You can just do document.querySelectorAll('.external a').forEach to iterate over all of them:

            Source https://stackoverflow.com/questions/67908098

            QUESTION

            Extend Express Middleware in Typescript
            Asked 2021-Jun-09 at 11:57

            I am currently writing a REST API with Express and Typescript but I am having trouble extending the Request/Response of Express.

            My IDE does not complain anymore, but Typescript throws TS2339 Errors when compiling with error TS2339: Property 'jsonStatusError' does not exist on type 'Response>'.

            I have a jsonResponseMiddleware

            ...

            ANSWER

            Answered 2021-Jun-09 at 11:57

            This attempt works for me.

            Add a file named global.ts in your source folder:

            Source https://stackoverflow.com/questions/67903304

            QUESTION

            How to use npm packages as ES6 modules loaded by the browser in 2021?
            Asked 2021-Jun-08 at 17:47

            I'm a JavaScript beginner. I do not use a "bundler".

            For a few days now I've been trying to use moment.js and other date-time libraries in some JavaScript by importing it using ES6 modules (ESM).

            I have a JS module I wrote, which is transpiled from TS, and that has this line:

            ...

            ANSWER

            Answered 2021-Jun-08 at 17:47

            You want to import a bundled version of the lib to be able to do that. Try:

            Source https://stackoverflow.com/questions/67891029

            QUESTION

            JS - How do I push multiple Sets into a single Array?
            Asked 2021-Jun-08 at 08:03

            I just recently discovered the "Set" data type in ES6. Love it so far. I am working on a Autoselect which consists of multiple options, but I don't want to show duplicates. Thats why I use the Set-Datatype.

            For example:

            I have this array of uploads:

            ...

            ANSWER

            Answered 2021-Jun-08 at 07:35

            QUESTION

            How to properly configure spring-security with vaadin14 to handle 2 entry points - keyclaok and DB
            Asked 2021-Jun-06 at 08:12

            I have a vaadin14 application that I want to enable different types of authentication mechanisms on different url paths. One is a test url, where authentication should use DB, and the other is the production url that uses keycloak.

            I was able to get each authentication mechanism to work separately, but once I try to put both, I get unexpected results.

            In both cases, I get login page, but the authentication doesn't work correctly. Here's my security configuration, what am I doing wrong?

            ...

            ANSWER

            Answered 2021-Jun-06 at 08:12

            Navigating within a Vaadin UI will change the URL in your browser, but it will not necessarily create a browser request to that exact URL, effectively bypassing the access control defined by Spring security for that URL. As such, Vaadin is really not suited for the request URL-based security approach that Spring provides. For this issue alone you could take a look at my add-on Spring Boot Security for Vaadin which I specifically created to close the gap between Spring security and Vaadin.

            But while creating two distinct Spring security contexts based on the URL is fairly easy, this - for the same reason - will not work well or at all with Vaadin. And that's something even my add-on couldn't help with.

            Update: As combining both security contexts is an option for you, I can offer the following solution (using my add-on): Starting from the Keycloak example, you would have to do the following:

            1. Change WebSecurityConfig to also add your DB-based AuthenticationProvider. Adding your UserDetailsService should still be enough. Make sure to give every user a suitable role.
            2. You have to remove this line from application.properties: codecamp.vaadin.security.standard-auth.enabled = false This will re-enable the standard login without Keycloak via a Vaadin view.
            3. Adapt the KeycloakRouteAccessDeniedHandler to ignore all test views that shouldn't be protected by Keycloak.

            I already prepared all this in Gitlab repo and removed everything not important for the main point of this solution. See the individual commits and their diffs to also help focus in on the important bits.

            Source https://stackoverflow.com/questions/67814818

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