ARTS

• A (Algotithm) 至少做一个leetcode的算法题
• R (Review) 阅读并点评一篇英文的技术文章
• T (Tip) 学习一个技术技巧
• S (Share) 分享一篇有观点和思考的技术文章

每周一次，坚持一年

Algorithm

Description Longest Common Prefix

Solution

/**
 * @param {string[]} strs
 * @return {string}
 */
var longestCommonPrefix = function(strs) {
    var prefix = strs[0];

    var strIndex = 0;
    var res;
    while(strIndex < strs.length) {
        res = strs[strIndex].match('^' + prefix);
        if (!res) {
            prefix = prefix.slice(0, -1);
        } else {
            strIndex++;
        }
    }
    return (res && res[0]) || '';
};

var arr = ["flower","flow","flight"];
console.log(arr, longestCommonPrefix(arr), 'fl');
arr = ["dog","racecar","car"];
console.log(arr, longestCommonPrefix(arr), '');
arr = ["flower","flow","flight"];
console.log(arr, longestCommonPrefix(arr), 'fl');
arr = ["flower"];
console.log(arr, longestCommonPrefix(arr), 'flower');

Review

Data Classes https://kotlinlang.org/docs/reference/data-classes.html#data-classes

定义 data class

data class User(val name: String, val age: Int)

意味着

public class User {

    private final String name;
    private final Int age;

    public User(String name, Int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public Int getAge() {
        return age;
    }

    @Override
    public boolean equals(Object other) {
        ...
    }

    @Override
    public int hashCode() {
        ...
    }

    @Override
    public String toString() {
        ...
    }

}

Tip

UGC / PGC

UGC（User-generated Content，用户生产内容） PGC（Professionally-generated Content，专业生产内容）

Share

未完待续。。。