#match()
方法的字串
深入了解JavaScript的字串match()方法
给定一个由regex
标识的正则表达式,尝试在字串中匹配它。
示例:
'Hi Flavio'.match(/avio/)
// Array [ 'avio' ]
'Test 123123329'.match(/\d+/)
// Array [ "123123329" ]
'hey'.match(/(hey|ho)/)
//Array [ "hey", "hey" ]
'123s'.match(/^(\d{3})(\w+)$/)
//Array [ "123s", "123", "s" ]
'123456789'.match(/(\d)+/)
//Array [ "123456789", "9" ]
'123s'.match(/^(\d{3})(?:\s)(\w+)$/)
//null
'123 s'.match(/^(\d{3})(?:\s)(\w+)$/)
//Array [ "123 s", "123", "s" ]
'I saw a bear'.match(/\bbear/) //Array ["bear"]
'I saw a beard'.match(/\bbear/) //Array ["bear"]
'I saw a beard'.match(/\bbear\b/) //null
'cool\_bear'.match(/\bbear\b/) //null
要了解有关正则表达式的更多信息,请参阅我的正则表达式教程。