In object-oriented programming, a helper class is used to assist in providing some functionality, which isn’t the main goal of the application or class in which it is used. An instance of a helper class is called a helper object (for example, in the delegation pattern).

What is a helper in C#?

A helper method is just a method that helps you do something else. For example, if you had to find the square root of a number multiple times within a method, you wouldn’t write out the code to find the root each time you needed it, you’d separate it out into a method like Math.

What is helper CSS?

CSS helper classes, otherwise known as utility classes, are a CSS methodology that allows us to write less repetitive, modular code. For example, you could write a text-align-left class that only job is to align the text left, nothing more.

What is a helper function?

A helper function is a function that performs part of the computation of another function. Helper functions are used to make your programs easier to read by giving descriptive names to computations. They also let you reuse computations, just as with functions in general.

Are helpers an anti pattern?

asawyer pointed out a few links in the comments to that question: Helper classes is an anti-pattern. While those links go into detail how helperclasses collide with the well known principles of oop some things are still unclear to me. For example “Do not repeat yourself”.

What are helper files?

Each helper file is simply a collection of functions in a particular category. They are simple, procedural functions. Each helper function performs one specific task, with no dependence on other functions. CodeIgniter does not load Helper Files by default, so the first step in using a Helper is to load it.

Is helper a design pattern?

It’s actually neither. “Helper” is a collective noun for a group of functions.

What all are helper classes in bootstrap?

Bootstrap Color Helper Classes

• text-muted.
• text-primary.
• text-success.
• text-info.
• text-warning.
• text-danger.

How do I create a helper class in PEGA?

Adding new helper classes

1. Add a new rule-file-text of type CSS to your application file.
2. Add the file as an Additional stylesheet to your application skin.
3. Write CSS selectors in the CSS Files that implement these helper classes.
4. Use these helper classes in your application on a cell, layout, or section include.

How do you use a helper?

CodeIgniter Helper

1. To use helper files, you need to load it.
2. To load URL helper,
3. You can also auto-load a helper if your application needs that helper globally by adding the helper in application/config/autoload.
4. Go to autoload.php file via application/config/autoload.php.

How do you name a helper function?

Functions should be named using lowercase, and words should be separated with an underscore. Functions should in addition have the grouping/module name as a prefix, to avoid name collisions between modules.

Are helper classes evil?

Utility classes (or helper classes), “structures” that have only static methods, which as design is very popular in Java world (as well as in C#, Ruby, Python worlds) as they can provide usual functionalities that are used everywhere in a simple manner.