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Stack & Queue
232. Implement Queue using Stacks FILO to FIFO MyQueue queue = new MyQueue(); queue.push(1); queue.push(2); queue.peek(); // returns 1 queue.pop(); // ...
分类:其他好文   时间:2020-04-23 20:53:26    阅读次数:56
Objects源码解读
1.equal()方法 Objects.equal方法可以避免jdk的equal()方法的对象为null时抛出空指针。 1 Objects.equal("a", "a"); // returns true 2 Objects.equal(null, "a"); // returns false 3 ...
分类:其他好文   时间:2020-04-23 12:25:17    阅读次数:60
[React] Improve developer experience for accessing context with a custom React hook
In this lesson, we create a custom hook that wraps the useContext hook and returns its value, as well as more useful error messaging if a context prov ...
分类:数据库   时间:2020-04-22 16:57:54    阅读次数:80
C# 解决IE文件名乱码方法
笔录 /// <summary> /// 解决IE文件名乱码方法 /// </summary> /// <param name="fileName">文件名</param> /// <returns></returns> public static string clFielName(string ...
分类:Windows程序   时间:2020-04-21 18:44:26    阅读次数:96
C# 判断字符串是否为整数
/// <summary> /// 判断一个字符串是否是正整数 /// </summary> /// <param name="s"></param> /// <returns></returns> public static bool IsInteger(string s) { string pa ...
分类:Windows程序   时间:2020-04-21 15:01:44    阅读次数:98
Transactions in Apache Kafka
In a previous blog post, we introduced exactly once semantics for Apache Kafka®. That post covered the various message delivery semantics, introduced ...
分类:Web程序   时间:2020-04-20 18:53:11    阅读次数:71
Group Join 操作
GroupJoin The GroupJoin operator performs the same task as Join operator except that GroupJoin returns a result in group based on specified group key. ...
分类:其他好文   时间:2020-04-18 21:22:31    阅读次数:71
【js】获取浏览器类型
1 /** 2 * 获取浏览器类型 3 * 4 * @param getVersion 5 * @returns {*} 6 */ 7 function getBrowser(getVersion) { 8 var ua_str = navigator.userAgent.toLowerCase() ...
分类:Web程序   时间:2020-04-17 16:06:52    阅读次数:93
496. Next Greater Element I
You are given two arrays (without duplicates) nums1 and nums2 where nums1’s elements are subset of nums2. Find all the next greater numbers for nums1' ...
分类:其他好文   时间:2020-04-15 15:17:52    阅读次数:68
C# 获取时间戳
/// <summary> /// 获取时间戳 /// </summary> /// <returns></returns> public static string GetTimeStamp() { TimeSpan ts = DateTime.UtcNow - new DateTime(1970 ...
分类:Windows程序   时间:2020-04-14 22:39:52    阅读次数:96
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