Signed integer

Published on Tue Mar 01 2022

Additional matching regexes for
Signed integer

Detecting numbers

signed or unsigned numbers with exponents or not

Signed numbers with optional decimal part (comma or dot)

Signed numbers with optional decimal part (comma or dot)

Single lone digits

Find single digits that are not part of an integer. For example, "27" should not match, but "27.1" will match the "1". "27.11" won't match.

Regex for real number

this regex can detect any real number whether it is signed or unsigned.plus it can detect real number both with and without floating point aka '.'.the numbers should be decimal number

Browser Console - Format Specifier

Captures format specifiers commonly used in logging and console messages, as defined in [the current whatwg/console spec](https://console.spec.whatwg.org/#formatter): - `%s`: Formats the value as a string - `%i`: Formats the value as an integer - `%d`: Formats the value as an integer - `%f`: Formats the value as a floating point value - `%o`: Formats the value as an expandable DOM element. As seen in the Elements panel - `%O`: Formats the value as an expandable JavaScript object - `%c`: Applies CSS style rules to the output string as specified by the second parameter

Browser Console - Format Specifier

Captures format specifiers commonly used in logging and console messages, as defined in [the current whatwg/console spec](https://console.spec.whatwg.org/#formatter): - `%s`: Formats the value as a string - `%i`: Formats the value as an integer - `%d`: Formats the value as an integer - `%f`: Formats the value as a floating point value - `%o`: Formats the value as an expandable DOM element. As seen in the Elements panel - `%O`: Formats the value as an expandable JavaScript object - `%c`: Applies CSS style rules to the output string as specified by the second parameter

Regex for complex number

it can detect complex number of both cartesian and Euler form.the real number in the real and imaginary part can be signed or unsigned.also it may or may not have floating Point.no problem. But,in Euler from the imaginary part should be written between brackets.here are some example:- +5.6+7i,-.004+2.5i,6.-i,i,e^-(5i),.02e^(-2.3i),7e^(i)

Alien username

Input Format The first line contains a single integer, , denoting the number of usernames. Each line of the subsequent lines contains a string denoting an alien username to validate. Constraints Output Format Iterate through each of the strings in order and determine whether or not each string is a valid alien username. If a username is a valid alien username, print VALID on a new line; otherwise, print INVALID. Sample Input 3 _0898989811abced_ _abce _09090909abcD0 Sample Output VALID INVALID INVALID Explanation We validate the following three usernames: _0898989811abced_ is valid as it satisfies the requirements specified above. Thus, we print VALID. _abce is invalid as the beginning _ is not followed by one or more digits. Thus, we print INVALID. _09090909abcD0 is invalid as the sequence of English alphabetic letters is immediately followed by a number. Thus, we print INVALID.