Snigdha Paul | Page 2

Snigdha Paul October 26, 2024 No Comments

What does ‘(?<!…)’ or negative lookbehind represents in regex (Regular expression)?

(?<!…) is used to checks if any preceding character or pattern does not match the specified pattern.Syntax: (?<!preceedingPattern)patternLet’s see with example: We have some lines…

Snigdha Paul October 26, 2024 No Comments

How to search a word separately through regex?

Suppose we have some lines below from where we just want to cut out ‘hello’ regardless of its case.Lines: fetch hello onlynot hello-worldavailable hellonot the…

Snigdha Paul September 28, 2024 1 Comment

How to assign names to capture groups in regex?

The syntax to assign a name to a capture group is (?<captureGroupName>patternToMatch).Let’s see an example : // Javascript code var str = "My birth date…

Snigdha Paul September 21, 2024 No Comments

What does \1, \2 etc refers to in regular expression?

\1 refers to the first capturing group. \2 refers to the second capturing group.\2 refers to the third capturing group.. . . Let’s understand more…

Snigdha Paul September 14, 2024 No Comments

What does ‘?=’ refers to in regular expression (regex)?

In regular expression (?=…) is a positive lookahead. It checks if the pattern is matched at the current position, but does not include it in…

Snigdha Paul September 7, 2024 No Comments

What is capturing group (…) and non-capturing group (?:…) in regex?

Capturing and non-capturing groups are used to group a pattern. In simple words we can treat a set of characters( Eg. [a-zA-Z0-9] and also other…

Snigdha Paul August 31, 2024 No Comments

How to search empty string, spaces, new lines etc through one line regular expression?

We can use a \s to search empty string, spaces, new lines etc.Regular expression will be : ^\s*$ Explanation of the regex : ^ :…

Snigdha Paul August 31, 2024 No Comments

How to check if a pattern does not exist in a string?

I have some lines below in which I want fetch only those lines where .com does not exist: Sample Lines : https://abc.com – Test sitehttps://testProfile.in…

Snigdha Paul August 17, 2024 No Comments

How to add multiple switch cases in coldfusion tag and script ?

<cfset Fruit = "Apple"> <cfswitch expression="#Fruit#"> <cfcase value="Mango,Apple,Watermelon"> I love Mango and Apple and Watermelon. </cfcase> <cfcase value="Guava"> I like Guava.…

Snigdha Paul August 10, 2024 No Comments

How to reverse an array in Coldfusion?

<cfscript> myArray1 = [67,12,45,98]; writeOutput("Before reverse : "); writeDump(myArray1); myArray2 = reReplace( serializeJSON( myArray1[::-1] ), "\[|\]", "", "ALL" ); myArray1 = listToArray( myArray2, ",", false,…

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