Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

Boolean helper

Open
#254 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
38/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript
Domain
tooling

Research direction

Start by reviewing the repository's existing mixin conventions and the proposed isTrue snippet in this issue. Confirm the intended behavior for true, false, undefined, and string values, then check the project tests to determine how the helper's behavior should be verified; completion depends on agreement about adding it.

Written by the indexing model from the issue text.

Description

Pretty frequently I come across the problem of needing to check if an optional variable is true or false. The problem is that the server can send it as true, false, undefined, "true", or "false". I added this mixin (based on this SO answer):

_.mixin({
  isTrue: function(str) {
    return JSON.parse((str || "false").toLowerCase());
  }
});

Thoughts on adding this?

Dominant language
JavaScript
Stars
622
Forks
114
PR merge metrics
No merged PRs in 30d

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from documentcloud/underscore-contrib

All issues in documentcloud/underscore-contrib

Similar issues

More JavaScript issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.