Are you trying to craft a regular expression for an input to validate it is a numeric value? Decimals are numerics so you don't need to check for decimals specifically.

Nov 18, 2013 · var regex = /^\d+(\.\d{0,2})?$/g; if (!regex.test(this.value)) { if (!regex.test(this.value[0])) this.value = this.value.substring(1, this.value.length); else. this.value = this.value.substring(0, this.value.length - 1); I need the user to be able to only enter numbers and one decimal (with only two numbers after the decimal).

Mar 19, 2015 · use \d+ instead of \d{0,1} if you want to allow more then one number use \d{0,2} instead of \d{0,1} if you want to allow up to two numbers after coma. See the example below for reference:

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

Learn how to use the regular expression ^\d {0,5}\.\d {1,2}$ to match decimal numbers with up to 5 digits before the decimal point and 1 or 2 digits after the decimal point.

Regular Expressions (Regex) to allow any decimal number starting from 1 upto N decimal places. Download View Demo Download Free Files API In this short code snippet article I will share the following Regular Expressions (Regex) for validating decimal numbers in TextBox.

At first glance, writing a regular expression to match a number should be easy right? We have the \d special character to match any digit, and all we need to do is match the decimal point right?

Nov 21, 2008 · To match numbers without a leading digit before the decimal (.12) and whole numbers having a trailing period (12.) while excluding input of a single period (.), try the following: Wrapped the fractional portion in ()? to make it optional. Be aware that this excludes forms such as 12. Including that would be more like ^\d+\\.?\d{0,2}$.

Jul 14, 2014 · In this short code snippet article I will share the following Regular Expressions (Regex) for validating decimal numbers in TextBox. 1. Regular Expressions (Regex) to match number with decimal precision of exact 1 decimal place. 2. Regular Expressions (Regex) to match number with decimal precision of exact 2 decimal places. 3.

Learn how to create a regular expression that can match decimal numbers with up to 4 decimal places.