Welcome to our guide on filtering data streams in Go. In this session, we'll explore data filtering, a key concept in data manipulation that enables you to focus on data that meets certain conditions and remove undesired pieces. Filtering acts like a sieve in the digital world; think of it as narrowing your search results while online shopping by selecting certain criteria such as color, size, and brand. In Go, we'll use slices and functions to achieve this filtering magic.

Loops are essential in programming as they automate repetitive tasks efficiently, making them an ideal mechanism for processing and filtering data. In Go, we can use the for loop with the range keyword to iterate through slices, checking each element against specific conditions and constructing a new, filtered slice.

Here's how we can filter numbers less than ten from a slice in Go:

In this example, we traverse each element in dataStream using for and range, only appending those that are less than ten to .