Then I learned these 5 techniques. Now I can't imagine coding without them.
Here's what changed everything:
๐๐ฌ๐ "๐ฌ๐๐ญ๐ข๐ฌ๐๐ข๐๐ฌ" ๐๐ง๐ฌ๐ญ๐๐๐ ๐จ๐ ๐๐ฒ๐ฉ๐ ๐๐ฌ๐ฌ๐๐ซ๐ญ๐ข๐จ๐ง๐ฌ
โข This simple switch changed everything for me.
โข You get type checking WITHOUT losing the literal types.
โข Game changer for autocomplete and refactoring.
๐๐๐ฆ๐ฉ๐ฅ๐๐ญ๐ ๐๐ข๐ญ๐๐ซ๐๐ฅ ๐๐ฒ๐ฉ๐๐ฌ ๐๐จ๐ซ ๐๐ญ๐ซ๐ข๐ง๐ ๐๐๐ฅ๐ข๐๐๐ญ๐ข๐จ๐ง
โข Instead of accepting any string, I now validate patterns at compile time.
โข Result: Caught 12 bugs before they hit production.
โข TypeScript now validates string patterns automatically.
๐๐ข๐ฌ๐๐ซ๐ข๐ฆ๐ข๐ง๐๐ญ๐๐ ๐๐ง๐ข๐จ๐ง๐ฌ ๐๐จ๐ซ ๐๐ญ๐๐ญ๐ ๐๐๐ง๐๐ ๐๐ฆ๐๐ง๐ญ
โข This pattern eliminated 90% of my "undefined is not an object" errors.
โข TypeScript automatically narrows types based on the status.
โข No more checking if data exists everywhere.
๐๐ฌ๐ "๐ฎ๐ง๐ค๐ง๐จ๐ฐ๐ง" ๐๐ง๐ฌ๐ญ๐๐๐ ๐จ๐ "๐๐ง๐ฒ"
โข Switching from any to unknown forced me to handle errors properly.
โข Impact: Reduced runtime errors by 40% in our production app.
โข This one change made my code so much safer.
๐๐จ๐ง๐ฌ๐ญ ๐๐ฌ๐ฌ๐๐ซ๐ญ๐ข๐จ๐ง๐ฌ ๐๐จ๐ซ ๐๐ฆ๐ฆ๐ฎ๐ญ๐๐๐ฅ๐ ๐๐๐ฃ๐๐๐ญ๐ฌ
โข Adding "as const" creates literal types and makes everything read-only.
โข Now I get perfect autocomplete and prevent accidental mutations.
โข Simple but incredibly powerful.
TypeScript isn't just about catching errors it's about writing code with confidence.
What's your favorite TypeScript feature that boosted your productivity?
Top comments (0)