JavaScript

JavaScript (JS) is a lightweight interpreted or JIT-compiled programming language with first-class functions. While it is most well-known as the scripting language for Web pages, many non-browser environments also use it, such as Node.js, Apache CouchDB and Adobe Acrobat. JavaScript is a prototype-based, multi-paradigm, dynamic language, supporting object-oriented, imperative, and declarative (e.g. functional programming) styles.
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What problem does this feature solve?
It would allow us to use numbers which is larger than MAX_SAFE_INTEGER.
What does the proposed API look like?
In HTML, {{BigInt("100")}}
, {{100n}}
, {{2n * 50n}}
or {{50n + 50n}}
should show "100" (it can be just simply string by using .toString()) at frontend.
At the moment using BigInt in "Mustache" syntax just throw error.
Sure, backu
React extension version: 4.4.0
Steps To Reproduce
- Install Firefox 72.0.2x64
- Go to Discordapp.com
The current behavior
Extension reports: "This page does not appears to be using React"
The expected behavior
React is detected (just like it is currently in Chrome/Chromium)
In twbs/bootstrap#30414 we discovered the skip links do not look that well if backported to v4
:
We could also improve the theming in v5, in some viewports, it also covers a critical part of the navbar
; they're all just "early SyntaxError" now. tc39/ecma262#691
- The users of this style guide will probably expect that all of the rules that it prescribes will be enforced by eslint. However, this is not the case - there is a secret, non-documented segmentation where some rules are enforced and others are not, because they would be "too noisy on a legacy codebase". An example of a problematic rule like this is covered in issue #2020. I propose that all of
Is there a way to hide the icon of a BrowserWindow
on Windows?
Actual:
<img width="68" alt="Screen Shot 2020-02-08 at 11 27 35 AM" src="https://user-images.githubusercontent.com/438516/74090907-194fc800-4a
Section/Content To Improve
Section "Config order of precedence".
Suggested Improvement
The current implementation of
I think it makes more sense to return an empty array
// invalid input return null or throw an error
if (!setA || !setB) {
return null;
}
if (!setA.length || !setB.length) {
return [];
}
// or do nothing since the for loop will not trigger anyway
- Version: v10.x
- Platform: all
- Subsystem: repl
What steps will reproduce the bug?
$ node
> function foo() {
... let n = 10n;
Thrown:
let n = 10n;
^
SyntaxError: Unexpected end of input
>
How often does it reproduce? Is there a required condition?
Reproduces all the time.
What is the expected behavior?
Should not cause an
-
Updated
May 19, 2020
Deno strives to be browser compatible where possible; that means we use quite a few Web APIs.
There is not much docs for supported Web APIs at the moment and before 1.0 is released that situation must change. Some of APIs and not fully aligned to spec, while others are not fully implemented (#3557). All that knowledge should be written down and presented to end users to avoid multiple question
We should discuss how to best support a library author providing translations for their library.
Description of the problem
It seems lack of some properties in MeshPhysicalMaterial
document.
https://threejs.org/docs/#api/en/materials/MeshPhysicalMaterial
Ever what I noticed are
- clearcoatNormalScale
- clearcoatNormalMap
- sheen
- transparency
We should update.
Three.js version
- Dev
- r113
- ...
Browser
- All of them
- [ ]
https://material-ui.com/components/menus/#simple-menu states:
Simple menus open over the anchor element by default (this option can be changed via props).
How can this be changed via props? The page doesn't say. I went to the Menu API page, and I don't see anything simple like open: 'below'
, or an offset.
Developers have been struggling to figu
-
Updated
Jun 23, 2020 - JavaScript
Bug report
Describe the bug
In the config.js addParameters
function, if I set isFullscreen: true
and open the webpage, it is fullscreen on startup. But if I set isFullscreen: false
and open the webpage again, it is still full-screen on startup.
To Reproduce
- Set
isFullscreen: true
, open the webpage, - Close the webpage or stop the server
- Set
isFullscreen: false
, open the webpa
Documentation Is:
- Missing or needed
- Confusing
- Not Sure?
Please Explain in Detail...
I needed to produce a number of charts with a consistent yAxes logarithmic scale so that users can compare between charts.
I tried setting the same yAxes config settings for each chart:
beginAtZero: true
ticks
Express uses hardcoded values for debug namespace, for example:
https://github.com/expressjs/express/blob/b69b7605b07b41273acc931d25ab585377bcd107/lib/router/index.js#L20
and it is extremly hard to determine in output where things are happening while doing TDD on microservices architecture. It would be nice to allow to specify prefix for namespace, i.e. per microservice which is an express app.
Given the immense popularity of Docker and the need to harden it different per platform (see ideas below) - we'd like to start writing a Docker best practices section.
You're welcome to contribute ideas and write best practices - writing and brainstorming will people is an amazing way to deepen your Docker understanding.
At first, we want to collect ideas for best practices, solidify a list
-
Updated
Jul 1, 2020 - JavaScript
Existing Component
Yes
Component Name
el-scrollbar
Description
I'm trying to add a scrollbar to an aside menu with el-scrollbar componant but I have some difficulty due to missing entry in the documentation.
My case is exactly the same as the documentation: a fixed header, a scrollable sidebar menu and a scro
const customizer = console.log // returns undefined => merging is handled by `mergeAllWith`
// good
mergeAll([{ a: 1 }, { b: 2 }]) // { a: 1, b: 2 }
mergeAllWith(customizer, [{ a: 1 }, { b: 2 }]) // { a: 1, b: 2 }
// A-OK; customizer logs the following:
// undefined 2 "b" Object { a: 1, b: 2 } Object { b: 2 } undefined
// bad
mergeAll({}, { a: 1 }, { b: 2 }) // { a: 1, b: 2 }; OU
Some of the issues below are already mentioned in other tickets, but I have the feeling that a proper generic issue is due to give it visibility, as for now the current package is unusable for many users.
- The typescript package doesn't respect the tsconfig flags, and many of them are hardcoded inside the meteor/babel package.
I understand that meteor needs to control some compilation option
-
Updated
Jul 2, 2020
Do you want to request a feature or report a bug?
feature request
What is the current behavior?
Currently yarn why
won't indicate any package info in the resolutions field
If the current behavior is a bug, please provide the steps to reproduce.
- install a package with any version, e.g
"pkg": "^1.0.0"
- add
resolutions
field in package.json,pkg: "1.0.0"
- upd
Created by Brendan Eich
Released December 4, 1995
- Website
- developer.mozilla.org/en-US/docs/Web/JavaScript
- Wikipedia
- Wikipedia
Describe your problem and how to reproduce it:
This is expected to work, and it works in the preview.
There is a space before and after the
=
symbol.