Discuss / JavaScript / 作业练习

作业练习

Topic source

好耶

#1 Created at ... [Delete] [Delete and Lock User]

1、return arr.reduce(function(x,y){ return x* y });

2、return s.split("").map(function(x){return x*1}).reduce(function(x,y){return x*10+y});

3、return arr.map((x)=>(x.toLowerCase().replace(x[0].toLowerCase(),x[0].toUpperCase())));

4、r = arr.map(x=>parseInt(x));

🌙

#2 Created at ... [Delete] [Delete and Lock User]

抄一波作业

🌙

#3 Created at ... [Delete] [Delete and Lock User]

看差了 replace 看出来 reduce

废话太多了@🌙

轩文博

#5 Created at ... [Delete] [Delete and Lock User]

想问一下 第三个 最后面那个括号里面的x[0].toLowerCase() 的toLowerCase()省略后会出错呢?

落叶起声

#6 Created at ... [Delete] [Delete and Lock User]

你在本地vscode里打印一下item你就知道了@

轩文博


  • 1

Reply