Regular Expressions 101

1420the literal text 1420

Group 1([0]([6]([6]([8]([0][0-9])|[9][0-9]{2})|[7-9][0-9]{3})|[7-9][0-9]{4})|[1]([5]([3]([1]([9][0-9]|[0-8][0-9]{1})|[0][0-9]{2})|[0-2][0-9]{3})|[0-4][0-9]{4}))

1st Alternative[0]([6]([6]([8]([0][0-9])|[9][0-9]{2})|[7-9][0-9]{3})|[7-9][0-9]{4})

Character Class[0]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Group 2([6]([6]([8]([0][0-9])|[9][0-9]{2})|[7-9][0-9]{3})|[7-9][0-9]{4})

1st Alternative[6]([6]([8]([0][0-9])|[9][0-9]{2})|[7-9][0-9]{3})

Character Class[6]

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Group 3([6]([8]([0][0-9])|[9][0-9]{2})|[7-9][0-9]{3})

1st Alternative[6]([8]([0][0-9])|[9][0-9]{2})

Character Class[6]

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Group 4([8]([0][0-9])|[9][0-9]{2})

1st Alternative[8]([0][0-9])

Character Class[8]

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

Group 5([0][0-9])

Character Class[0]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative[9][0-9]{2}

Character Class[9]

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative[7-9][0-9]{3}

Character Class[7-9]

7-9one character from 7 (55₁₀) to 9 (57₁₀)

Character Class[0-9]{3}

{3}matches exactly 3 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative[7-9][0-9]{4}

Character Class[7-9]

7-9one character from 7 (55₁₀) to 9 (57₁₀)

Character Class[0-9]{4}

{4}matches exactly 4 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

2nd Alternative[1]([5]([3]([1]([9][0-9]|[0-8][0-9]{1})|[0][0-9]{2})|[0-2][0-9]{3})|[0-4][0-9]{4})

Character Class[1]

Group 6([5]([3]([1]([9][0-9]|[0-8][0-9]{1})|[0][0-9]{2})|[0-2][0-9]{3})|[0-4][0-9]{4})

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

No unit tests · Add a test to get started

Search reference

Regular Expression

1420([0]([6]([6]([8]([0][0-9])|[9][0-9]{2})|[7-9][0-9]{3})|[7-9][0-9]{4})|[1]([5]([3]([1]([9][0-9]|[0-8][0-9]{1})|[0][0-9]{2})|[0-2][0-9]{3})|[0-4][0-9]{4}))

Unit Tests

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