如何使用split拆分字符串（ ）并获得分隔符？ [重复]

Question

这个问题在这里已有答案：

• Javascript and regex: split string and keep the separator 6个答案

我想使用String.prototype.split（/ [a-zA-Z] /）在每个字母处拆分以下字符串：

'M 10 10L 150 300'

结果：

[ "", " 10 10", " 150 300" ]

但我希望收到这个：

[ "", "M 10 10", "L 150 300" ]

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What is the fastest way to get that result using JavaScript?

Answer 1

尝试使用与/[a-zA-Z][^a-zA-Z]*/g的匹配来捕获字母和以下非字母字符：

let s = 'M 10 10L 150 300'

console.log(
  s.match(/^[^a-zA-Z]+|[a-zA-Z][^a-zA-Z]*/g)   // ^[^a-zA-Z]+ to include the case when 
                                               // the string doesn't begin with a letter
)