martinhj · April 4, 2019 13:11
diff --git a/javascript-regex.js b/javascript-regex.js
 // positive lookahead
 // ?=
 const lookaheadRegex = /something(?=\$)/  // match something at end of line, but not the end of line

 // positive lookbehind
 // ?<=
 const lookaheadRegex = /(?<=\^)something/  // match something at the start of line, but not the start of line

 // negative lookahead
 // ?!
 const lookaheadRegex = /something(?!\$)/  // match something not at the end of line

 // negative lookbehind
 // ?<!
 const lookaheadRegex = /(?<!\^)something/  // match something not at the start of line
	// positive lookahead
	// ?=
	const lookaheadRegex = /something(?=\$)/ // match something at end of line, but not the end of line

	// positive lookbehind
	// ?<=
	const lookaheadRegex = /(?<=\^)something/ // match something at the start of line, but not the start of line

	// negative lookahead
	// ?!
	const lookaheadRegex = /something(?!\$)/ // match something not at the end of line

	// negative lookbehind
	// ?<!
	const lookaheadRegex = /(?<!\^)something/ // match something not at the start of line