29 lines
702 B
TypeScript
29 lines
702 B
TypeScript
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import { isObject } from '@vue/shared'
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import { debounce } from './debounce'
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import type { DebouncedFunc, ThrottleSettings } from './_common'
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const FUNC_ERROR_TEXT = 'Expected a function'
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export function throttle<T extends (...args: any) => any>(
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func: T,
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wait?: number,
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options?: ThrottleSettings
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): DebouncedFunc<T> {
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let leading = true,
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trailing = true
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if (typeof func != 'function') {
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throw new TypeError(FUNC_ERROR_TEXT)
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}
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if (isObject(options)) {
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leading = 'leading' in options ? !!options.leading : leading
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trailing = 'trailing' in options ? !!options.trailing : trailing
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}
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return debounce(func, wait, {
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leading,
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maxWait: wait,
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trailing,
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})
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}
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