svelte | Cybernetically enhanced web apps | Frontend Framework library
kandi X-RAY | svelte Summary
kandi X-RAY | svelte Summary
Svelte is a new way to build web applications. It's a compiler that takes your declarative components and converts them into efficient JavaScript that surgically updates the DOM. Learn more at the Svelte website, or stop by the Discord chatroom.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of svelte
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svelte Examples and Code Snippets
Lines of Code : 98License : Permissive (MIT License)
Copyconst BY = {
name: 'CC BY 2.0',
url: 'https://creativecommons.org/licenses/by/2.0/'
};
const BY_SA = {
name: 'CC BY-SA 2.0',
url: 'https://creativecommons.org/licenses/by-sa/2.0/'
};
const BY_ND = {
name: 'CC BY-ND 2.0',
url: 'https://creativ export default {
a: [
{ x: 10, y: 8.04 },
{ x: 8, y: 6.95 },
{ x: 13, y: 7.58 },
{ x: 9, y: 8.81 },
{ x: 11, y: 8.33 },
{ x: 14, y: 9.96 },
{ x: 6, y: 7.24 },
{ x: 4, y: 4.26 },
{ x: 12, y: 10.84 },
{ x: 7, y: 4.82 },
{ x: 5, y export default [
{ x: 1979, y: 7.19 },
{ x: 1980, y: 7.83 },
{ x: 1981, y: 7.24 },
{ x: 1982, y: 7.44 },
{ x: 1983, y: 7.51 },
{ x: 1984, y: 7.10 },
{ x: 1985, y: 6.91 },
{ x: 1986, y: 7.53 },
{ x: 1987, y: 7.47 },
{ x: 1988, y: 7.48 },
{
{#if appInitialized}
'showing App'
{:else}
'initializing App'
{/if}
{#await settings.init()}
'initializing store'
{:then}
'show App'
{:catch error}
'Couldn't initialize - '{error.message}
{/
a: {a}
b: {b}
a
b
{text}
{
display = "none";
setTimeout(() => (display = ""), 0);
}}>
localstorage.setItem('comments', JSON.stringify(arr_of_cmnts);
//In svelte
let arr_of_cmnts = [];
export const comments = writable(localStorage.getItem('comments')|| JSON.stringify(arr_of_cmnts));
//js **normally**# svelte/public/index.html
...
# Svelte main.js
import Chat from './Chat.svelte';
new Chat({
target: document.querySelector('#chat'),
});
{#each availableValues as value}
{value.name}
{/each}
// App.svelte
{#each selectedValues as sv (sv.id)}
- {sv.name} [id: {sv.id}]
{/each}
//MySelect.svelte
Community Discussions
Trending Discussions on svelte
QUESTION
I have a list of 2000 input checkboxes. When selecting them all at once there is noticeable delay (and browser freeze) of about 2 seconds. This seems to be the case for Vue and React, but not for Svelte or jQuery or vanilla.
With 5k+ checkboxes it becomes a very annoying 3-5 seconds blocker...
Why is the re-rendering taking so long?
How can I overcome this update delay with Vue.js?
(The solutions of paginate or lazy-load are not really solving the problem; they are avoiding it.)
Below is the code in Vue followed by the same example in Svelte.
...ANSWER
Answered 2022-Apr-15 at 09:591. The reason of slowly changes
QUESTION
I am trying to build a docker image from a sample app I have created in Sveltekit.
I am using the @sveltejs/adapter-auto and have included both .js files for API calls and .svelte files in my routes folder.
Here is my Dockerfile (which builds fine, but might not be correct)
...ANSWER
Answered 2022-Mar-31 at 19:20You should include your package.json in your final Docker image.
Edit: Also I'm not sure you should use .svelte-kit/build since this is an intermediate result used by sveltekit internally. You should have a build folder after running build task but I'm not sure cause I never used auto adapter, I usually use node adapter.
Mine basically looks like this:
QUESTION
The following question is specific to SvelteKit.
I have a page that could potentially render a subset of various components based upon what the server determines from the request. But since the server is already going to determine what should/should not be displayed, I don't want to include any of the other components in the final bundle shipped to the client since the client will never need that code for that specific request.
To illustrate, in the example code below, if there is no error, I don't want the code for ErrorToast included in the bundle.
ANSWER
Answered 2022-Mar-21 at 14:40From Rich Harris via Twitter:
your bundler can't know that won't be used, because it can't know that
errorwon't change at runtime. closest you can get is this sort of thing:
QUESTION
In a NORMAL Svelte project (no SvelteKit) the static files are in the public directory and when running npm run build (rollup -c) the src folder is compiled into public/build and the public folder can then be hosted somewhere.
I now switched (an already existing) Svelte project to Vite and the static files are still under public but when running npm run build (vite build), everything is bundled into the dist directory. So all the files in the public directory are actually copied and exist twice in the project. Which means when changing or adding something (which doesn't effect the app logic) the project needs to be rebuild before it can be redeployed.
Can this be changed via the configuration, that either all compiled files are added again to the public directory or that the static files reside directly inside dist and nothing is copied during the build process?
Edit: The project should still be able to be run in dev mode npm run dev (vite) with the assets being served
ANSWER
Answered 2022-Mar-08 at 08:07Yes you can keep public files in dist without copying, but it's a little "hacking".
First you need to disable publicDir option to disable copying.
Then disable emptyOutdir to reserve files.
Finally you may want to clean old assets, so a buildStart hook is added, cleaning dist/assets when build starts.
The final vite.config.js (you may want to add some error handling):
QUESTION
Maybe someone tried this before and is able to give me a hint. I have used normal svelte setup (mentioned in the main page) which scaffolds the app;
npx degit sveltejs/template my-svelte-project
I wanted to use vaadin web components in Svelte. I've installed it;
npm install @vaadin/vaadin
the code of main.ts:
...ANSWER
Answered 2022-Feb-22 at 13:27You seem to be importing the Material theme version of the Button component. The "primary" theme variant is only available if you use the default Lumo theme. To import that, use import '@vaadin/button';
For the Material theme, you can use the "outlined" and "contained" theme variants instead: https://cdn.vaadin.com/vaadin-material-styles/1.3.2/demo/buttons.html
QUESTION
In a Svelte component, I'm trying to access an object I set up in my rollup config file.
My rollup.config.js file looks like this:
ANSWER
Answered 2022-Jan-07 at 17:12Good question! The object foo remains undefined so it is throwing the right error, and is unable to find foo to replace with whatever you are going to replace it with.
The solution is having the replace plugin do its job. You may access your variable like this in your js or your .svelte files
QUESTION
I am a beginner in both Svelte and Tailwind and want to avoid an XY-Problem, so here is my goal:
I generate rows of a table with an #each loop in Svelte. (6 values per row). I now want to conditionally color the background of this row based on one value (the battery charge).
My idea was to conditionally render different tags based on this value. Like this:
...ANSWER
Answered 2022-Feb-08 at 12:13I think you should change approach for that problem. You could use the class:name element directive.
A class: directive provides a shorter way of toggling a class on an element.
Example
QUESTION
I am testing my SvelteKit site with Cypress. I sometimes experience flaky tests, similar to what has been described here: https://www.cypress.io/blog/2019/01/22/when-can-the-test-click/. In short, Cypress sometimes finds and clicks a button before the event listeners are attached - as a result, the click goes nowhere. The proposed solution is to simply re-try clicking until the appropriate listeners have been attached. That works in my case as well. However, though I do understand why this can be an issue in the example given in the blog post (it's a large calendar modal), I find it hard to justify that this issue arises when using a simple Svelte button.
Here is a simple example of a button that reveals some content when clicked:
...ANSWER
Answered 2022-Feb-07 at 10:02SvelteKit will by default do server side rendering (SSR), which means the complete HTML is sent to the browser, including the button. That HTML then needs to be hydrated afterwards to become interactive. This means that some code runs so that Svelte connects to the HTML that already exists. Cypress is likely "too fast" here and clicks the button before that hydration step is completed, therefore nothing happens.
It does not happen with pure Svelte because there's no SSR involved. There's a blank index.html page initially which is completely filled by Svelte's JavaScript inside the browser, so the moment the button is visible, the event listener and everything else is already initialized by Svelte.
Comparison by steps:SvelteKit with SSR:
- Go to page X
- Page X is rendered on the server
- Page X is sent to the browser, with the complete HTML
- Svelte hydrates the HTML (Race condition with Cypress' click test)
- Completed
Pure Svelte or SvelteKit without SSR:
- Go to page X
- Blank page is sent to the browser
- Svelte constructs and initializes the HTML inside the browser (No race condition with Cypress' click test)
- Completed
QUESTION
If I run npm run build with SvelteKit it seems to include all files from the src folder. Is it possible to exclude a certain file type (eg. *test.js)?
Select demo app with
npm init svelte@next my-appAdd the following code to
...src/routes/todos/foo.test.js
ANSWER
Answered 2022-Jan-29 at 02:42SvelteKit 1.0.0 supports a routes configuration that enables file exclusion from the src/routes directory. The config value is a function that receives a file path as an argument, and returns true to use the file as a route.
For example, the following routes config excludes *.test.js files from routes:
QUESTION
I would like to import apexChart library which using "window" property, and i get error in console.
...ANSWER
Answered 2022-Jan-27 at 15:34The easiest way is to simply include apexcharts like a standalone library in your webpage like this:
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