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题目： The objective of 'Duck, duck, goose' is to walk in a circle, tapping on each player's head until one is finally chosen. Task: Given an array of Pl 阅读全文
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题目： Given an array of one's and zero's convert the equivalent binary value to an integer. Eg: [0, 0, 0, 1] is treated as 0001 which is the binary repr 阅读全文
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题目： Deferring a function execution can sometimes save a lot of execution time in our programs by postponing the execution to the latest possible insta 阅读全文
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题目： Implement a function that adds two numbers together and returns their sum in binary. The conversion can be done before, or after the addition. The 阅读全文
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题目： You probably know the "like" system from Facebook and other pages. People can "like" blog posts, pictures or other items. We want to create the te 阅读全文
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题目： The new "Avengers" movie has just been released! There are a lot of people at the cinema box office standing in a huge line. Each of them has a si 阅读全文
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题目： Your task is to write a higher order function for chaining together a list of unary functions. In other words, it should return a function that do 阅读全文
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题目： Write a function, persistence, that takes in a positive parameter num and returns its multiplicative persistence, which is the number of times you 阅读全文
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题目： You are going to be given an array of integers. Your job is to take that array and find an index N where the sum of the integers to the left of N 阅读全文
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var testFun = function( callback,lblstr ){ //callback 是你的方法 lblstr做标记的名称，测试字符串在函数内部。如有错误，自行改正。。切勿打脸（测试代码来源网上） var teststr = '3345687687876789123'; var 阅读全文