Step 1. Install Hugo Goto hugo releases and download the appropriate version for your os and architecture. Save it somewhere specific as we will be using it in the next step. More complete instructions are available at installing hugo Step 2. Build the Docs Hugo has its own example site which happens to also be the documentation site you are reading right now. Follow the following steps: Clone the hugo repository Go into the repo Run hugo in server mode and build the docs Open your browser to http://localhost:1313 Corresponding pseudo commands:

数组方法 Map and Set（映射和集合） 创建一个函数 unique(arr)，该函数返回一个由 arr 中所有唯一元素所组成的数组。 1 2 3 4 5 6 7 8 9 function unique(arr) { return Array.from(new Set(arr)) } let values = ["Hare", "Krishna", "Hare", "Krishna", "Krishna", "Krishna", "Hare", "Hare", ":-O" ]; alert( unique(values) ); // Hare, Krishna, :-O P.S. 这里用到了 string 类型，但其实可以是任何类型的值。 函数 匿名函数 函数是对象所以可以通过赋值来指向到函数对象的指针，当然指针也可以传递给其他变量，注意后面要以;结束。下面使用函数表达式将 匿名函数 赋值给变量 1 2 3 4 5 6 7 8 let hd = function(num) { return ++num; }; console.