VueUse
Delay is set to 1000ms for this demo.

Button clicked: 0

Event handler called: 0

useThrottleFn

Throttle execution of a function. Especially useful for rate limiting execution of handlers on events like resize and scroll.

Throttle is a spring that throws balls: after a ball flies out it needs some time to shrink back, so it cannot throw any more balls unless it's ready.

Usage

import { useThrottleFn } from '@vueuse/core'

const throttledFn = useThrottleFn(() => {
  // do something, it will be called at most 1 time per second
}, 1000)

document.addEventLisenter('resize', throttledFn)
  • useThrottle
  • useThrottleFn
  • useDebounce
  • useDebounceFn

Type Declarations

/**
 * Throttle execution of a function. Especially useful for rate limiting
 * execution of handlers on events like resize and scroll.
 *
 * @param   fn             A function to be executed after delay milliseconds. The `this` context and all arguments are passed through, as-is,
 *                                    to `callback` when the throttled-function is executed.
 * @param   ms             A zero-or-greater delay in milliseconds. For event callbacks, values around 100 or 250 (or even higher) are most useful.
 *
 * @return  A new, throttled, function.
 */
export declare function useThrottleFn<T extends FunctionArgs>(
  fn: T,
  ms?: MaybeRef<number>,
  trailing?: boolean
): T

Source

Source • Demo • Docs