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Parsing: The Number.MIN_VALUE attribute represents the smallest positive value that can be represented in JavaScript. The MIN_VALUE attribute is the closest positive value to 0 in JavaScript, not the smallest negative value.The ack reflection attack can be carried out by using the ack response of the server side of the three-way handshake.22711948年6月的中国，解放战争呈现胶着状态，中国在两种不同命运、两种不同前途之间摇摆。IV. Application Value of BIM Technology in Operation and Maintenance爷爷、奶奶他们那时候还在世，可惜我没有好好地尽孝。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 ~