Question

今天有一个问题，引起了我的兴趣（并随后被删除），用户希望将以下字符串与正则表达式分开

'The 1. cat 2. sat 3. on 4. the 5. mat';

进入这个数组

["cat","sat","on","the","mat"]

这个表达式有答案

str.match(/[a-z]+/gi);

当然会返回

["The","cat","sat","on","the","mat"]

我最接近答案的是

str.match(/[^The][a-z]+/gi);

返回

[" cat"," sat"," on"," the"," mat"]

单元测试here

当然可以这样做，但是怎么做？

Answer 1

怎么样

的Javascript

var str = 'The 1. cat 2. sat 3. on 4. the 5. mat',
    arr1 = str.match(/[a-z]+/gi),
    arr2 = str.match(/\b[a-z]+/g);

console.log(arr1);
console.log(arr2);

输出

["The", "cat", "sat", "on", "the", "mat"] 
["cat", "sat", "on", "the", "mat"]

在jsFiddle

上

Answer 2

str.match(/\b(?!The\b)[a-z]+\b/gi)

Answer 3

您可以使用此模式：

str.match(/\b[a-z]+\b(?!\s1\.)/gi)

将字符串拆分为具有正则表达式的数组，不包括单词

3 个答案: