Please ensure that only numerical values and decimal points are allowed

Hello there, I am currently developing a directive in AngularJS that specifically allows only positive numbers and decimal values. Any characters other than numbers (such as +, -, abc...) will be removed from the input.

Initially, I attempted to achieve this using the following code:

var transformedInput = text.replace(/[^0-9]/g, '');

Although this worked well, it did not support decimal numbers. Hence, I modified my approach to:

transformedInput = text.replace(/[^0-9]+([,.][0-9]+)?$/g, '');

I am encountering some issues with my code. Could someone please review it and provide assistance?

javascriptangularjsangularjs-directive

Answer №1

If you need to clean up a string by removing everything except numbers, decimal points, newlines, and commas, you can easily do so using a straightforward regular expression:

[^0-9.,\n]+  //global, multiline, replace with blank string

Check out the demo here

Answer №2

/^[0-9]*$/

^ : Indicates the start.

[0-9]* : Represents any sequence of numbers.

$ : Marks the end of the string.

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