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[js] 第544天 计算从一个大数组中(如1万条数据)取出第一数据和最后一条数据的时间分别是多少？ #3043

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[js] 第544天 计算从一个大数组中(如1万条数据)取出第一数据和最后一条数据的时间分别是多少？#3043
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@haizhilin2013
haizhilin2013
opened on Oct 11, 2020
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第544天 计算从一个大数组中(如1万条数据)取出第一数据和最后一条数据的时间分别是多少？

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我也要出题

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haizhilin2013
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jsJavaScript
on Oct 11, 2020
wheatup

wheatup commented on Oct 12, 2020

@wheatup
wheatup
on Oct 12, 2020

数组的存取时间复杂度都是O(1)，与索引无关

lt846786463

lt846786463 commented on Oct 20, 2020

@lt846786463
lt846786463
on Oct 20, 2020
console.time('aa');
for(var i=0;i<10000;i++){console.log(i);};
console.timeEnd('aa')
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          [js] 第544天 计算从一个大数组中(如1万条数据)取出第一数据和最后一条数据的时间分别是多少？ · Issue #3043 · haizlin/fe-interview