DocsICP FilingConsole
官方文档
首页

Fn::MatchPattern

更新时间：
复制 MD 格式
产品详情
我的收藏

Fn::MatchPattern checks whether a string value matches a regular expression and returns true or false.

Declaration

  • JSON

    {
  "Fn::MatchPattern": [
    pattern,
    value
  ]
}

  • YAML

    • Syntax for the full function name: 

      Fn::MatchPattern: pattern, value

    • Syntax for the short form: 

      !MatchPattern [pattern, value]

Parameters

  • pattern: Required. A regular expression of the String type.

  • value: Required. The string value to match against the regular expression.

Return value

true or false.

Examples

  • Fn::MatchPattern:
 - '[a-z]+'
 - adb

    true is returned. 

  • Fn::MatchPattern:
 - '[a-z]+'
 - 12b

    false is returned.

Previous：Fn::EachMemberInNext：Fn::Cidr