26 lines
629 B
JavaScript
26 lines
629 B
JavaScript
/**
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* 防抖函数
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* @param {Function} fn 需要防抖的函数
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* @param {Number} delay 延迟时间，单位毫秒
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* @param {Boolean} immediate 是否立即执行
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* @returns {Function} 返回防抖处理后的函数
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*/
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export function debounce(fn, delay = 500, immediate = false) {
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let timer = null
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let isInvoke = false
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return function(...args) {
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if (timer) clearTimeout(timer)
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if (immediate && !isInvoke) {
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fn.apply(this, args)
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isInvoke = true
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} else {
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timer = setTimeout(() => {
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fn.apply(this, args)
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isInvoke = false
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timer = null
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}, delay)
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}
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}
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}
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