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For example, if we want to implement a JS function, Such as form validation, Then if we don't use the policy pattern in javascript described in the previous chapter to solve the form validation encapsulation code, It is a temporary form validation function written by itself. Certainly without any encapsulation, Then at this time, we will pop up a prompt to the user for whether the two values are equal. If there is a form verification on another page, their judgment method and business logic are basically the same, but the comparison parameters are different. Should we consider writing a form verification code again? So now we can consider using the template method pattern to solve this problem. Common methods are extracted, and different methods are implemented by specific subclasses. This design code also has the advantages of stronger scalability and better code ~[News Survey] 20190105 Divorce她虽然不知自己的归宿在何处，不知能不能重返桃花谷，但是，她肯定不会在此地生活一辈子。1938年秋，日寇向皖南发动进攻，意图打开华中腹地。新四军支队司令谭俊和日军指挥官斋藤少将之间在繁昌战场展开了五次激烈的交战，我军既要抵御日军的正面进攻，又面临着身边卧底特务尚孟哲随时可能采取的致命性的破坏活动，经过谭俊和民运队长田敏等人的艰苦努力，和敌人斗智斗勇、以弱胜强，以五战五捷的结果取得最终胜利。具有高智商的斋藤少将使出百般招数却无法越雷池一步，最后被击毙在战场；特务尚孟哲也终于暴露被田敏抓住枪毙，谭俊和田敏这一对表面上并不般配的恋人，在经过战争的洗礼后萌发出真挚的情感，两人历经种种磨难，共同面对生死考验，冲破层层阻碍终成眷属。张老太太见孙子如此强硬，这才放下心来。