Regular Expressions: Pound Sign at beginning of word
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13-03-2021 - |
문제
I am trying to find words starting with a pound sign. Javascript.
"test #word no#luck".replace( /\b#([\w]+)\b/g, "<#$1>" );
yet the word boundary doesn't seem to apply to the #-sign. it outputs:
test #word no<#luck>
also i am a bit confused that i need to add the #-sign again in the replacement pattern "<#$1>", as the algorithm seems to strip it in the process.
해결책
Here's how I'd do it:
result = subject.replace(/(^|\s)(#\w+)\b/g, "$1<$2>");
다른 팁
Try this:
result = subject.replace(/(?:^|\s)(#\w+)(?:\s|$)/g, "<$1>");
\b
will only work with \w
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