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fix: dont spam IPFS_INIT_FAILED events to countly (#2133)
* fix: dont spam IPFS_INIT_FAILED events to countly * fix(hof/functions): jsdoc types are valid * fix(hofs/functions): types and add debounce function * chore: cleanup code * fix: typecheck see https://github.com/ipfs/ipfs-webui/actions/runs/5418218369/jobs/9850182385\?pr\=2133 * test(hofs/functions): add tests * fix: typecheck succeeds * feat: fn first hofs, add param guards * chore: wrap check for limited addEvent
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| /** | ||
| * | ||
| * @param {any} value | ||
| * @param {boolean} [throwOnFalse] | ||
| * @returns {value is Function} | ||
| */ | ||
| export function isFunction (value, throwOnFalse = true) { | ||
| if (typeof value === 'function') { return true } | ||
| if (throwOnFalse) { throw new TypeError('Expected a function') } | ||
| return false | ||
| } | ||
|
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| /** | ||
| * | ||
| * @param {any} value | ||
| * @param {boolean} [throwOnFalse] | ||
| * @returns {value is number} | ||
| */ | ||
| export function isNumber (value, throwOnFalse = true) { | ||
| if (typeof value === 'number') { return true } | ||
| if (throwOnFalse) { throw new TypeError('Expected a number') } | ||
| return false | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| import { isFunction, isNumber } from './guards.js' | ||
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| describe('lib/guards', function () { | ||
| describe('isFunction', function () { | ||
| it('should return true if the passed value is a function', function () { | ||
| expect(isFunction(() => {})).toBe(true) | ||
| }) | ||
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| it('should throw an error if the passed value is not a function', function () { | ||
| expect(() => isFunction('not a function')).toThrow(TypeError) | ||
| }) | ||
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| it('should return false if the passed value is not a function and throwOnFalse is false', function () { | ||
| expect(isFunction('not a function', false)).toBe(false) | ||
| }) | ||
| }) | ||
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| describe('isNumber', function () { | ||
| it('should return true if the passed value is a function', function () { | ||
| expect(isNumber(1)).toBe(true) | ||
| }) | ||
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| it('should throw an error if the passed value is not a function', function () { | ||
| expect(() => isNumber('not a number')).toThrow(TypeError) | ||
| }) | ||
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| it('should return false if the passed value is not a function and throwOnFalse is false', function () { | ||
| expect(isNumber('not a number', false)).toBe(false) | ||
| }) | ||
| }) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| import { isFunction, isNumber } from '../guards.js' | ||
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| /** | ||
| * This method creates a function that invokes func once it’s called n or more times. | ||
| * @see https://youmightnotneed.com/lodash#after | ||
| * @template A | ||
| * @template R | ||
| * @param {number} times | ||
| * @param {(...args: A[]) => R} fn | ||
| * @returns {(...args: A[]) => void | R} | ||
| */ | ||
| export const after = (fn, times) => { | ||
| isFunction(fn) && isNumber(times) | ||
| let counter = 0 | ||
| /** | ||
| * @type {(...args: A[]) => void | R} | ||
| */ | ||
| return (...args) => { | ||
| counter++ | ||
| if (counter >= times) { | ||
| return fn(...args) | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * @see https://youmightnotneed.com/lodash#once | ||
| * @template A | ||
| * @template R | ||
| * @param {(...args: A[]) => R} fn | ||
| * @returns {(...args: A[]) => R} | ||
| */ | ||
| export const once = (fn) => { | ||
| isFunction(fn) | ||
| let called = false | ||
| /** | ||
| * @type {R} | ||
| */ | ||
| let result | ||
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| /** | ||
| * @type {(...args: A[]) => R} | ||
| */ | ||
| return (...args) => { | ||
| if (!called) { | ||
| result = fn(...args) | ||
| called = true | ||
| } | ||
| return result | ||
| } | ||
| } | ||
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| /** | ||
| * @see https://youmightnotneed.com/lodash#debounce | ||
| * | ||
| * @template A | ||
| * @template R | ||
| * @param {(...args: A[]) => R} fn - The function to debounce. | ||
| * @param {number} delay - The number of milliseconds to delay. | ||
| * @param {Object} options | ||
| * @param {boolean} [options.leading] | ||
| * @returns {(...args: A[]) => void} | ||
| */ | ||
| export const debounce = (fn, delay, { leading = false } = {}) => { | ||
| isFunction(fn) && isNumber(delay) | ||
| /** | ||
| * @type {NodeJS.Timeout} | ||
| */ | ||
| let timerId | ||
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| return (...args) => { | ||
| if (!timerId && leading) { | ||
| fn(...args) | ||
| } | ||
| clearTimeout(timerId) | ||
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| timerId = setTimeout(() => fn(...args), delay) | ||
| } | ||
| } | ||
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| /** | ||
| * Call a function only once on the nth time it was called | ||
| * @template A | ||
| * @template R | ||
| * @param {number} nth - The nth time the function should be called when it is actually invoked. | ||
| * @param {(...args: A[]) => R} fn - The function to call. | ||
| * @returns {(...args: A[]) => void | R} | ||
| */ | ||
| export const onlyOnceAfter = (fn, nth) => { | ||
| isFunction(fn) && isNumber(nth) | ||
| return after(once(fn), nth) | ||
| } |
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