Some small knowledge points about ruby - Code World

Some small knowledge points about ruby

Others 2020-09-25 11:31:15 views: null

About arrays

arr = [1,2,2,3,4,]

Get the minimum value in the array

 a.min => 1

Get an array that does not contain duplicate elements

a.uniq => [1,2,3,4]

About numbers

a = 132113.2233

Keep decimal places

a.round(2) => 132113.22  #自动进行四舍五入换算

Being added in time

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Origin blog.csdn.net/weixin_42656358/article/details/102546763

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