关于本计算器
Test JavaScript regular expressions live: validity, match count and indexed matches.
正则测试器
实时测试正则匹配。
输入计算参数
计算结果摘要
匹配2
正则有效✓
“ada@example.com” @ 8
“bob@test.org” @ 27
常见问题
Flags?
g/i/m/s/u/y supported; scanning forces global.
Catastrophic patterns?
Kept safe by capping text at 5000 chars and 100 matches.
Groups shown?
Full matches with indices; use (...) and test to explore groups.