Lists in programming

A list is a commonly used data structure in programming that allows you to store multiple items in a single variable. Lists are useful when you want to group related data, such as a collection of numbers, names, or objects.


Example of a List in Python programming language:

fruits = ["apple", "banana", "cherry"]


Why Do We Use Lists?

Lists are widely used in programming because they:


Feature                         Benefit

Store Multiple Values You can store many items under one variable.

Dynamic Size                 You can add or remove elements anytime.

Maintain Order         Items retain their insertion order.

Support Different Data Types Lists can contain integers, strings, floats, etc.


Features of a List

A list has the following key features:


Feature Description

Ordered The order of items remains the same as they were added.

Mutable You can change, add, or remove items.

Indexed Elements are accessed using index numbers.

Heterogeneous Lists can hold mixed data types.


YouTube video

Comments

Post a Comment

Popular posts from this blog

Absolute and relative path in HTML pages

HTML documents can have relative or absolute links to other web pages. Relative links keeps a visitor on the same web site. Relative links are pointers to other web pages on the same web site. They just contain this page filename. Absolute links on other hand contain full path including protocol and domain name to access the page. Absolute links can point to the same web site or they can point to a different web site.
Read more

Errors

It is a good idea to send errors in production environment to error log. Errors may contain sensitive information. Even so errors maybe helpful to development team or to QA team, errors need to be suppressed in production environment for viewing by everyone. Errors are good way to troubleshoot an issue therefore only trusted people can have access to this information. If not a trusted person get an access to this information, this information maybe used against the company and for a personal benefit. What to do in a case when there are more servers than one? Even so it is possible to inspect the log files in a single server, however it is impossible to do so when there is more than one server is available and web traffic is redirected to a different server each time. Log aggregation is needed in this case. All of the logs will be send to a central location. Logs may contain sensitive information. Please consult your company lawyer of how long logs can be stored, because logs can be use...
Read more

goto PHP operator

goto operator will skip execution of code and continue execution of a code that follows a label to which goto operator points to. If code has many goto operators, than this code probably needs a revision. It is possible to write code that executes without goto operators.
Read more