How to negative match regex in JavaScript string replace? [duplicate] - javascript

This question already has answers here:
Strip all non-numeric characters from string in JavaScript
(12 answers)
Closed 8 years ago.
I am trying to replace with a blank all characters except numbers, but this doesn't works:
s.replace(/(?!\d)/g, '')
Thanks!


Use negative character classes:
s.replace(/[^0-9]+/g, '')
or s.replace(/[^\d]+/g, '')
or s.replace(/\D+/g, '')

Related

Regex to capture digits after pattern [duplicate]

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Why do regex constructors need to be double escaped?
(5 answers)
Closed 2 years ago.
I can't seem to find the issue with this code:
const regex = "/tel:\+61(\d+)/g";
const subscriberNumber = senderAddress.match(regex);
For input text, senderAddress = tel:+619123456789 the subscriberNumber is null.
What's causing it to return null?

You haven't escaped the + in 61. + is used as a concatenation operator too.

I don’t think the parentheses around \d+ are necessary.

Input should allow alphabets, special characters but not number values [duplicate]

This question already has answers here:
numbers not allowed (0-9) - Regex Expression in javascript
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Closed 2 years ago.
I am trying to create a react(javascript) form, In that one field should allow all values (Uppercase letters, Lowercase letters and special characters) but not numbers.
Is there any regex or any other solution?
Thanks in advance.

You can simply check that a string DOESN'T contain numbers using regex \d which matches all numbers:
!(/\d/.test(string))

Javascript regex to replace only numbers [duplicate]

This question already has answers here:
Regex to check whether a string contains only numbers [duplicate]
(21 answers)
Closed 4 years ago.
I want a Javascript regex to replace only numbers i.e. all others alphabets and special characters are allowed.

This should do:
let string= "26kgsl5"
let newString = string.replace(/[0-9]/g, "");
console.log(newString);

regular expression javascripy [duplicate]

This question already has answers here:
Regex to validate password strength
(11 answers)
Closed 4 years ago.
What can be a valid regex for a password that contains at least 8 characters in which there should be one upper-case,one lower-case and one number?

Here is a regular expression for a string with at least 8 characters, one upper-case, one lower-case and one number.
^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$

How to convert price format string into number in jquery [duplicate]

This question already has answers here:
How to convert a currency string to a double with Javascript?
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Closed 6 years ago.
I have a string like this
"$2,099,585.43"
"$" maybe any symbol, like #,#..etc.
I want to convert this into 2099585.43
Is there any simple way to do this?

Use String#replace and remove characters which are not a digit or dot.
console.log(
"$2,099,585.43".replace(/[^\d.]/g, '')
)

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