| $n | nth non-passive group |
| $2 | “xyz” in /^(abc(xyz))$/ |
| $1 | “xyz” in /^(?:abc)(xyz)$/ |
| $` | Before matched string |
| $’ | After matched string |
| $+ | Last matched string |
| $& | Entire matched string |
Some regex implementations use \ instead of $.
| $n | nth non-passive group |
| $2 | “xyz” in /^(abc(xyz))$/ |
| $1 | “xyz” in /^(?:abc)(xyz)$/ |
| $` | Before matched string |
| $’ | After matched string |
| $+ | Last matched string |
| $& | Entire matched string |
Some regex implementations use \ instead of $.