JavaScript regex to remove "value=99"

June 17, 2023

Anonymous

write a js regex to remove a string that contains something like value="99"

ChatGPT

Sure, here's a JavaScript regular expression that can remove a string that contains value="99":

javascript
const regex = /<[^>]+value="99"[^>]*>/g;
const stringWithoutValue99 = yourString.replace(regex, '');

In this regular expression, /<[^>]+value="99"[^>]*>/g, the / characters are used to delimit the expression, while the g at the end means that it will match all occurrences of the pattern.

The expression matches any string that contains the text value="99", surrounded by < and > characters, with any other characters (if any) in between. The [^>]+ means "one or more characters that are not >", while the [^>]* means "zero or more characters that are not >". This is to ensure that the pattern matches even if there are other attributes in the HTML tag.

The replace method is then called on the original string to remove all occurrences of the matched pattern with an empty string, effectively removing them from the string.

Note that this regular expression will only work on strings that contain HTML tags with the specified pattern. If you're trying to remove the pattern from a plain text string, you'll need to adjust the regular expression accordingly.

Anonymous

write a js regex that matches a string that contains various numbers like` value="99"`

ChatGPT

Sure, here's a JavaScript regular expression that can match a string that contains various numbers like value="99":

javascript
const regex = /<[^>]+value="\d+"[^>]*>/g;
const matchedStrings = yourString.match(regex);

In this regular expression, /<[^>]+value="\d+"[^>]*>/g, the / characters are used to delimit the expression, while the g at the end means that it will match all occurrences of the pattern.

The expression matches any string that contains the text value=" followed by one or more digits (\d+), followed by a closing " character, surrounded by < and > characters, with any other characters (if any) in between. The [^>]+ means "one or more characters that are not >", while the [^>]* means "zero or more characters that are not >". This is to ensure that the pattern matches even if there are other attributes in the HTML tag.

The match method is then called on the original string to find all occurrences of the matched pattern and return them as an array of strings.

Note that this regular expression will only work on strings that contain HTML tags with the specified pattern. If you're trying to match the pattern in a plain text string, you'll need to adjust the regular expression accordingly.

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