Pattern matching for arrays nested within another array

Question

Pattern matching for arrays nested within another array

I need help validating the format of inner arrays within an outer array (arr1) that contains multiple values. Each inner array should adhere to a specific structure, with arr1[1] serving as an example for the rest of the arrays in arr1.

arr1[1] = ['item1', 'item2', 'item3', 'item4', 'item5']:

item 1 - "abcdef" (variable number of letters)
item 2 - "abcdef" (variable number of letters)
item 3 - "abcdef" (variable number of letters) OR "abcdef asdf" (variable number of letters separated by one whitespace character)    
item 4 - "12345678" (eight digits)
item 5 - "123 456 7890" (telephone number with 3 digits followed by 3 digits followed by 4 digits with two whitespace characters as shown)

Currently, I'm working on a function but unsure about a specific line of code which was sourced from another Stack Overflow thread:

function f(s) {
  var s2 = (""+s).replace(/\D/g, '');
  var m = s2.match(/^(\d{3})(\d{3})(\d{4})$/);
}

Any guidance or assistance would be greatly appreciated. Thank you!

javascript arrays regex

Answer 1

Answer №1

Here is a guide for validation:

item 1 - \w+ (can have any number of letters)
item 2 - \w+ (can have any number of letters)
item 3 - \w+(?:\s\w+)? (can have variable letters with optional space) OR 
                         (can have variable letters separated by one space character)    
item 4 - \d{8} (must be eight digits)
item 5 - (?:\d{3}\s){2}\d{4} (telephone number format: 3 digits, 3 digits, 4 digits with two spaces in between)

UPDATE: You can utilize

^\w+?,\s\w+?,\s\w+(?:\s\w+)?,\s\d{8},\s(?:\d{3}\s){2}\d{4}$

to directly check the string.

Example Usage:

function checkString(str) {
  return (/^\[\s'\w+?',\s'\w+?',\s'\w+(?:\s\w+)?',\s'\d{8}',\s'(?:\d{3}\s){2}\d{4}'\s\]$/).test(str);
}

Answer 2

Here is a guide for validation:

item 1 - \w+ (can have any number of letters)
item 2 - \w+ (can have any number of letters)
item 3 - \w+(?:\s\w+)? (can have variable letters with optional space) OR 
                         (can have variable letters separated by one space character)    
item 4 - \d{8} (must be eight digits)
item 5 - (?:\d{3}\s){2}\d{4} (telephone number format: 3 digits, 3 digits, 4 digits with two spaces in between)

UPDATE: You can utilize

^\w+?,\s\w+?,\s\w+(?:\s\w+)?,\s\d{8},\s(?:\d{3}\s){2}\d{4}$

to directly check the string.

Example Usage:

function checkString(str) {
  return (/^\[\s'\w+?',\s'\w+?',\s'\w+(?:\s\w+)?',\s'\d{8}',\s'(?:\d{3}\s){2}\d{4}'\s\]$/).test(str);
}

Answer 3

Answer №2

Make sure to include the following code snippet:

const validatePhoneNumber = (phoneNumber) => {
      return (/^(\d{3})\s(\d{3})\s(\d{4})$/).test(phoneNumber);
}

The validatePhoneNumber function will return false if the phone number string does not match the expected format.

Answer 4

Make sure to include the following code snippet:

const validatePhoneNumber = (phoneNumber) => {
      return (/^(\d{3})\s(\d{3})\s(\d{4})$/).test(phoneNumber);
}

The validatePhoneNumber function will return false if the phone number string does not match the expected format.

Pattern matching for arrays nested within another array

Answer №1

Answer №2

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