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1.3 KiB
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1 line
1.3 KiB
Plaintext
{"version":3,"file":"throttle.js","sources":["../../../../../src/sheep/helper/throttle.js"],"sourcesContent":["let timer\r\nlet flag\r\n/**\r\n * 节流原理：在一定时间内，只能触发一次\r\n *\r\n * @param {Function} func 要执行的回调函数\r\n * @param {Number} wait 延时的时间\r\n * @param {Boolean} immediate 是否立即执行\r\n * @return null\r\n */\r\nfunction throttle(func, wait = 500, immediate = true) {\r\n if (immediate) {\r\n if (!flag) {\r\n flag = true\r\n // 如果是立即执行，则在wait毫秒内开始时执行\r\n typeof func === 'function' && func()\r\n timer = setTimeout(() => {\r\n flag = false\r\n }, wait)\r\n } else {\r\n }\r\n } else if (!flag) {\r\n flag = true\r\n // 如果是非立即执行，则在wait毫秒内的结束处执行\r\n timer = setTimeout(() => {\r\n flag = false\r\n typeof func === 'function' && func()\r\n }, wait)\r\n }\r\n}\r\nexport default throttle\r\n"],"names":[],"mappings":";AACA,IAAI;AASJ,SAAS,SAAS,MAAM,OAAO,KAAK,YAAY,MAAM;AACpD,MAAI,WAAW;AACb,QAAI,CAAC,MAAM;AACT,aAAO;AAEP,aAAO,SAAS,cAAc,KAAM;AAC5B,iBAAW,MAAM;AACvB,eAAO;AAAA,MACR,GAAE,IAAI;AAAA,IAER;AAAA,EACL,WAAa,CAAC,MAAM;AAChB,WAAO;AAEC,eAAW,MAAM;AACvB,aAAO;AACP,aAAO,SAAS,cAAc,KAAM;AAAA,IACrC,GAAE,IAAI;AAAA,EACR;AACH;;"} |