Operator(filtering): add "NotNil" operator

Repository metrics

Stars

659 stars (659 stars)

PR merge metrics

PR metrics pending (PR metrics pending)

Description

This issue does not include a description.

Contributor guide

Research direction

Study existing filtering operators (e.g., Filter, Select) and implement a new NotNil operator that filters out nil values from a stream.

Tech stack

go

Domain

backend

Issue type

Feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

Active

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

Mostly clear

Prerequisites

Go

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

80