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javascriptregexword-boundary

Regular Expressions: Pound Sign at beginning of word

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.

Solution

  • Here's how I'd do it:

    result = subject.replace(/(^|\s)(#\w+)\b/g, "$1<$2>");