javascript:拆分多个分隔符的字符串,但也将分隔符作为单独的标记保留
我想拆分字符串,但希望将令牌和拆分器作为单独的令牌保留,并希望返回一个数组:javascript:拆分多个分隔符的字符串,但也将分隔符作为单独的标记保留,javascript,node.js,Javascript,Node.js,我想拆分字符串,但希望将令牌和拆分器作为单独的令牌保留,并希望返回一个数组: elt(a,b,c)" => 0 = "elt" 1 = "(" 2 = "a" 3 = "," 4 = "b" 5 = "," 6 = "c" 7 = ")" 到目前为止,我在这里: string = "elt(a, b, c)" string.split(new RegExp('[-+(),*/:? ]', 'g')) 0 = "elt" 1 = "a" 2 = "" 3 = "b" 4 = "
elt(a,b,c)" =>
0 = "elt"
1 = "("
2 = "a"
3 = ","
4 = "b"
5 = ","
6 = "c"
7 = ")"
到目前为止,我在这里:
string = "elt(a, b, c)"
string.split(new RegExp('[-+(),*/:? ]', 'g'))
0 = "elt"
1 = "a"
2 = ""
3 = "b"
4 = ""
5 = "c"
6 = ""
我想将分隔符作为数组传递,如:
separators=['+'、'、'、'>>>='、'>>='、'>>='、'您可以在正则表达式中使用捕获组来保存令牌:
string.split(/([-+(),*/:? ])/g)
^ ^
|___ group __|
输出:
[
'elt', '(', 'a', ',',
'', ' ', 'b', ',',
'', ' ', 'c', ')',
''
]
您还可以轻松删除空字符串:
string.split(/([-+(),*/:? ])/g).filter(Boolean)
尝试使用lookarounds进行拆分:
var string=“elt(a,b,c)”;
var parts=string.split(/(?如果分隔符是多个字符,会发生什么情况?例如,“>>>=”是分隔符。我假设我可以将分隔符作为一个数组传递,比如操作符=['>>>=','>>=',“>>=”,“你也可以这样做,只是不要在正则表达式中使用字符集,而是使用>
,而不是>(>>>=>=|