Kesalahan regex umum yang merusak pola nyata
Panduan praktis tentang perilaku greedy, escaping, flags, dan false positive yang sering membuat regex gagal di teks nyata.
Baca artikelCoba pola, flags, dan teks uji langsung di browser untuk melihat kecocokan dengan cepat. Cocok untuk debugging, aturan validasi, dan workflow teknis pemrosesan teks.
Cocokan
0: Tool 23: teks 34: tool 40: data
Regex valid
Ya
Jumlah kecocokan
4
Hasil dipotong
Tidak
Panduan
Regex Tester is a free online tool for checking JavaScript regular expressions against real sample text before you use them in code, forms or scripts.
It is useful when you need to validate patterns, inspect matches, test flags and understand why a regex is matching too much, too little or the wrong text.
Use it when a plain contains search is not enough and you need a pattern that can validate, extract or transform text based on rules.
It is especially useful before shipping a regex into production code, because testing against real examples helps expose false positives, missed matches and flag mistakes.
Penggunaan
Paste the sample text, add the regex pattern and choose the flags you want to test.
Run the tester and inspect the matches, groups and overall behavior to make sure the pattern is doing exactly what you expect.
If the result looks wrong, adjust escaping, anchors, quantifiers or flags before copying the regex into your codebase.
FAQ
Ya. Anda bisa mencoba flags seperti g, i, dan m langsung di tool ini.
Ya. Tester ini dibuat berdasarkan regular expression JavaScript.
Wawasan
Panduan praktis tentang perilaku greedy, escaping, flags, dan false positive yang sering membuat regex gagal di teks nyata.
Baca artikelPanduan praktis tentang perbedaan regex dan pencarian teks sederhana, serta kapan contains, find, atau search lebih cocok dipakai.
Baca artikelPanduan praktis tentang regular expression, string uji, dan kapan tester regex berguna untuk debugging, validasi, dan pemrosesan teks.
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