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|-|{"files":{"高频执行事件、方法的防抖.js":{"env":"js"}},"tag":"Uncategorized"}
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// 取自 UnderscoreJS 实用框架 | |
function debounce(func, wait, immediate) { | |
var timeout; | |
return function() { | |
var context = this, args = arguments; | |
var later = function() { | |
timeout = null; | |
if (!immediate) func.apply(context, args); | |
}; | |
var callNow = immediate && !timeout; | |
clearTimeout(timeout); | |
timeout = setTimeout(later, wait); | |
if (callNow) func.apply(context, args); | |
}; | |
} | |
// 添加resize的回调函数,但是只允许它每300毫秒执行一次 | |
window.addEventListener('resize', debounce(function(event) { | |
// 这里写resize过程 | |
}, 300)); |
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