UserUtils

Library with various utilities for userscripts - register listeners for when CSS selectors exist, intercept events, manage persistent user configurations, modify the DOM more easily and more

目前為 2023-10-01 提交的版本，檢視最新版本。

此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.gf.qytechs.cn/scripts/472956/1258798/UserUtils.js

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作者: Sv443
版本: 2.0.0
建立日期: 2023-08-12
更新日期: 2023-10-01
尺寸: 19.0 KB
授權條款: MIT

UserUtils

Library with various utilities for userscripts - register listeners for when CSS selectors exist, intercept events, manage persistent user configurations, modify the DOM more easily and more.
Contains builtin TypeScript declarations. Webpack compatible and supports ESM and CJS.
Licensed under the MIT license.

You may want to check out my template for userscripts in TypeScript that you can use to get started quickly. It also includes this library by default.

If you like using this library, please consider supporting the development ❤️

Full documentation on GitHub

Features:

DOM:
- onSelector() - call a listener once a selector is found in the DOM
- initOnSelector() - needs to be called once to be able to use onSelector()
- getSelectorMap() - returns all currently registered selectors, listeners and options
- getUnsafeWindow() - get the unsafeWindow object or fall back to the regular window object
- insertAfter() - insert an element as a sibling after another element
- addParent() - add a parent element around another element
- addGlobalStyle() - add a global style to the page
- preloadImages() - preload images into the browser cache for faster loading later on
- openInNewTab() - open a link in a new tab
- interceptEvent() - conditionally intercepts events registered by addEventListener() on any given EventTarget object
- interceptWindowEvent() - conditionally intercepts events registered by addEventListener() on the window object
- amplifyMedia() - amplify an audio or video element's volume past the maximum of 100%
- isScrollable() - check if an element has a horizontal or vertical scroll bar
Math:
- clamp() - constrain a number between a min and max value
- mapRange() - map a number from one range to the same spot in another range
- randRange() - generate a random number between a min and max boundary
Misc:
- ConfigManager() - class that manages persistent userscript configurations, including data migration
- autoPlural() - automatically pluralize a string
- pauseFor() - pause the execution of a function for a given amount of time
- debounce() - call a function only once, after a given amount of time
- fetchAdvanced() - wrapper around the fetch API with a timeout option
- insertValues() - insert values into a string at specified placeholders
Arrays:
- randomItem() - returns a random item from an array
- randomItemIndex() - returns a tuple of a random item and its index from an array
- takeRandomItem() - returns a random item from an array and mutates it to remove the item
- randomizeArray() - returns a copy of the array with its items in a random order
Translation:
- tr() - simple translation of a string to another language
- tr.addLanguage() - add a language and its translations
- tr.setLanguage() - set the currently active language
- tr.getLanguage() - returns the currently active language
Utility types for TypeScript
- Stringifiable - any value that is a string or can be converted to one (implicitly or explicitly)

Installation:

If you are using a bundler like webpack, you can install this package using npm:
```
npm i @sv443-network/userutils
```
Then, import it in your script as usual:
```
import { addGlobalStyle } from "@sv443-network/userutils";

// or just import everything (not recommended because this doesn't allow for treeshaking):

import * as UserUtils from "@sv443-network/userutils";
```
Shameless plug: I made a webpack-based template for userscripts in TypeScript that you can use to get started quickly. It also includes this library by default.

If you are not using a bundler, you can include the latest release by adding one of these directives to the userscript header, depending on your preferred CDN:

// @require https://gf.qytechs.cn/scripts/472956-userutils/code/UserUtils.js

// @require https://openuserjs.org/src/libs/Sv443/UserUtils.js

Then, access the functions on the global variable UserUtils:

UserUtils.addGlobalStyle("body { background-color: red; }");

// or using object destructuring:

const { clamp } = UserUtils;
console.log(clamp(1, 5, 10); // 5

UserUtils

Full documentation on GitHub

Features:

Installation:

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