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Consider a non-DOM scenario where you'd want to remove all non-numeric characters from a string using JavaScript/ECMAScript. Any characters that are in range 0 - 9 should be kept.
var myString = 'abc123.8<blah>'; //desired output is 1238 How would you achieve this in plain JavaScript? Please remember this is a non-DOM scenario, so jQuery and other solutions involving browser and keypress events aren't suitable.
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In order to remove all non-numeric characters from a string, replace() function is used. replace() Function: This function searches a string for a specific value, or a RegExp, and returns a new string where the replacement is done.
Using 'str. replace() , we can replace a specific character. If we want to remove that specific character, replace that character with an empty string. The str. replace() method will replace all occurrences of the specific character mentioned.
Delete all occurrences of a character in javascript string using replaceAll() The replaceAll() method in javascript replaces all the occurrences of a particular character or string in the calling string. The first argument: is the character or the string to be searched within the calling string and replaced.
Use the string's .replace method with a regex of \D, which is a shorthand character class that matches all non-digits:
myString = myString.replace(/\D/g,''); If you need this to leave the dot for float numbers, use this
var s = "-12345.50 €".replace(/[^\d.-]/g, ''); // gives "-12345.50" If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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