I'm working on a Regex.
let phones = ['321-1234567','+355 321 1234567','0103 1234500', '00 355 3211234567' ]
I want to have the following results:
3211234567
+3553211234567
+3551031234500
+3553211234567
I have implemented this:
phones.forEach(phone => {
phone = phone.replace(/^0+/,'+355').replace(/[^+\d]+/g, '')
console.log(phone)
})
Output:
3211234567
+3553211234567
+3551031234500
+3553553211234567 --->wrong , it should be: +3553211234567
and it works only for the three first elements of array, but it doesn't work for the last one (the case when we should replace those two zeros with + ).
So, when the phone number starts with a zero, replace that first zero with +355, when it starts with 00, replace those two zeros with + .
How can I do that using a Regex, or should I use conditions like if phone.startsWith()?
My question is not a duplication of: Format a phone number (get rid of empty spaces and replace the first digit if it's 0)
as the solution there doesn't take in consideration the case when the phone number starts with 00 355 .
You can use
let phones = ['321-1234567','+355 321 1234567','0103 1234500', '00 355 3211234567' ]
for (const phone of phones) {
console.log(
phone.replace(/^0{1,2}/, (x) => x=='00'?'+':'+355')
.replace(/(?!^\+)\D/g, ''))
}Details:
.replace(/^0{1,2}/, (x) => x=='00'?'+':'+355') - matches 00 or 0 at the start of string, and if the match is 00, replacement is +, else, replacement is +355 (here, x stands for the whole match value and if ? then : else is a ternary operator).replace(/(?!^\+)\D/g, '') removes any non-digit if it is not + at the start of string.Regex details:
^0{1,2} - ^ matches start of string and 0{1,2} matches one or two zero chars(?!^\+)\D - (?!^\+) is a negative lookahead that fails the match if the char immediately to the right is + that is located at the start of the string (due to ^ anchor), and \D matches any char other than a digit.let phones = ['321-1234567','+355 321 1234567','0103 1234500', '00 355 3211234567' ]
phones = phones.map(r => r
.replace(/^00/,'+')
.replace(/^0/,'+355')
.replace(/[^+\d]+/g, '')
)
console.log(phones)your only problem is in this line replace(/^0+/,'+355') replace this with replace(/^0+/,'+')
phones.forEach(phone => {
phone = phone.replace(/^0+/,'+').replace(/[^+\d]+/g, '')
console.log(phone)
})