dart_helper_utils

Use when Dart/Flutter code needs debouncing, throttling, stream shaping, or bounded-concurrency async work with the dart_helper_utils package - search-input debounce, rate-limited event streams, Debouncer/DebouncedCallback/Throttler lifecycle and disposal, TimeUtils.debounce/throttle/runWithTimeout, stream bufferCount/window/rateLimit/asPausable/withLatestValue/retry/replaceOnError, StreamController safeAdd/safeClose, Future minWait/timeoutOrNull, retry with exponential backoff, waitConcurrency, or mapConcurrent.

Use when upgrading a project from dart_helper_utils 5.x or earlier to 6.x, or fixing compile errors after that bump - ConvertObject/toString1/ParsingException renames, altKeys to alternativeKeys, firstValueForKeys to tryGetRaw, removed Paginator/DoublyLinkedList/country data/StringSimilarity, httpFormat to httpDateFormat, flatJson to flatMap, TimeUtils.throttle signature change, percentile 0-100 range, delay methods, or helpers that moved to convert_object or package collection.

Use when bumping the dart_helper_utils package version in a project or auditing an upgrade's impact - detecting the installed version, sequencing migration hops across v2/v3/v4/v5/v6, patch-level 6.0.x bumps, or answering "is it safe to upgrade dart_helper_utils".

Use when writing or reviewing Dart/Flutter code that uses the dart_helper_utils package - deep map utilities (flatMap, unflatten, getPath, setPath, deepMerge), string casing/slugify/masking/parseDuration/truncate, MIME filename checks, iterable chunks/windowed/partition/distinctBy, number stats and HTTP status helpers, DateTime and Duration extensions, intl formatting wrappers (formatAsReadableNumber, dateFormat, pluralize), Uri rebuild, or deciding between dart_helper_utils and direct collection/intl/convert_object imports.