Hello friends, In this article we will see some common dataweave String functions from String core package(dw::core::Strings)  along with their use-cases.

To use these functions in dataweave scripts we need to add/import the module header as below.

you can either import complete package by using * or if you want to use specific function you can use just function name in place of placeholder as given below <functionName>

%dw 2.0

import * from dw::core::Strings or import <functionName> from dw::core::Strings 

output application/json

—

{}

Here, we will see 4 common String functions and their usage.

• capitalize(String): String
• camelize(String): String
• dasherize(String): String
• underscore(String): String 

capitalize(String): String

This function accepts input as String and returns results as String. It capitalizes the first letter of each word in a string. It also removes underscores between words and puts a space before each capitalized word.

%dw 2.0

camelize(String): String

This function accepts input as String and returns results as String.  It returns a string in camel case based on underscores in the string. All underscores are deleted, including any underscores at the beginning of the string.

dasherize(String): String

This function accepts input as String and returns results as String. It replaces spaces, underscores, and camel-casing in a string with dashes (hyphens). If no spaces, underscores, and camel-casing are present, the output will match the input. 

%dw 2.0

Above function works based String input containing underscore. Below underscore function will help you to revert String  to underscore format. 

underscore(String): String