在返回 [[“vddv']]
而不是[“dd' 之后,为什么返回 [
"aaavddv".match(/(?:v).*(?:v)/)
How to get a selected text inside a iframe. I my page i m having a iframe which is editable true. So how can i get the selected text in that iframe.
在返回 [[“vddv']]
而不是[“dd' 之后,为什么返回 [
"aaavddv".match(/(?:v).*(?:v)/)
(?:v) # matches v this is a non-capturing group, not a lookbehind
.* # matches dd
(?:v) # matches v this is a non-capturing group, not a lookahead
非俘虏团体仍参与比赛。 您可能想要一个外观头部/ 身后 。 但 Javascript 不支持外观 。
"aaavddv".match(/(?:v)(.*)(?:v)/)[1]
整个匹配值正确 vddv
, 但是, 如果您只想要匹配 dd
, 您需要使用抓取组( 并查看元素 < code> [1] ) 。
/(?) (?:v) * (?:v)/
指定表达式 v(字符数) v
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