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Frameworks & web · #angularjs
Flaky Protractor tests usually aren't a timing problem — they're a synchronization problem. Learn how waitForAngular works, how to handle non-Angular pages, and when to migrate.
Large AngularJS 1.x lists lag because every digest re-evaluates thousands of watchers. One-time binding (::) deregisters watchers for static data — here's how it works, a worked ng-repeat example, and the staleness trade-off.
Learn how to add a track by expression to AngularJS ng-repeat to reuse DOM nodes and avoid costly rebuilds when large lists change.
Understand how ng-model implements two-way data binding in AngularJS 1.x to synchronize the View and Model, and learn how to manage the performance impact of the digest cycle.
Use AngularJS one-time binding (::) to drop watcher count and speed up digest cycles in large lists.
Learn how to spot excessive $watch expressions in AngularJS, measure digest time, and apply fixes like track‑by and one‑time bindings to restore UI responsiveness.
Learn how ng‑model in AngularJS 1.x keeps a form input and a scope variable in sync, the underlying digest cycle, and when to avoid heavy two‑way binding for better performance.
AngularJS 1.3+ one-time bindings (::) deregister watchers after first render, cutting digest-cycle time in large lists. A practical guide to applying, verifying, and safely reverting them.
The AngularJS infdig error means a watch never stabilizes across digest passes. Learn to read the watch list, isolate the offender, and apply the right fix — without masking it via digestTtl().
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