The Angular @switch Upgrades You Should Know About
Angular's @switch block has received significant upgrades that enhance its functionality. The new features include exhaustive type checking and grouped cases, which help prevent UI issues when template states change. This article discusses these improvements using a practical example involving ticket statuses.
- ▪Angular's @switch block now includes exhaustive type checking to catch missing template states.
- ▪Grouped cases allow developers to eliminate duplicate markup when multiple states render the same UI.
- ▪The article illustrates these improvements with a real-world example of a support queue ticket system.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 324503) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Brian Treese Posted on May 29 • Originally published at briantree.se The Angular @switch Upgrades You Should Know About #angular #typescript #javascript #webdev Angular's @switch block has become a lot more useful recently. With exhaustive type checking, Angular can now catch missing template states when a TypeScript union or enum changes. And with grouped cases, we can remove duplicate markup when multiple states render the same UI.
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