Baidu found this way of thinking: needs a queue, a queue of panic buying results and a queue of inventory. In the case of high concurrency, first put the user into the queue, use a thread loop to remove a user from the queue, and judge whether the user...
console.log.apply(console, args); Math.max.apply(Math,number); in the study of apply call, why is the first parameter of apply bound to the object? That is, why one parameter of console.log.apply (console, args); is console,Math.max.apply (Math,number);...
whether objects using weakreference in java singletons can be recycled retrofit is sufficient to use singletons to put retrofit into weakreference public class RetrofitSingleton { private WeakReference<Retrofit> retrofitWeakReference; private ...
<el-input style= width:336px;height:20px; placeholder="" v-model="creditCode" @blur="creditInfo" :maxlength=25> < el-input> <el-input style= width:336px;height:20px; ...
Xiaobai doesn t understand. In the process of doing mobile, you can use rem, for everything. But after media query, why can t you use rem instead of px to set the font font-size in the page? ...
practice using the sun.misc.Unsafe class when simulating the tabAt method of ConcurrentHashMap. As shown in the following code, use arrayBaseOffset to get the offset address of the first element of the array, and why both arrays can get the element at t...