Fast feedback before a server round-trip.

• Category: JS Form Validation — part of the JavaScript Tutorial on GoCareerGo
• Read the short summary above, then check the linked docs for full syntax/behaviour
• Interview tip: be ready to explain "Why Client-Side Validation?" in one sentence, then back it up with a tiny example

// Why Client-Side Validation? — minimal example
console.log("Why Client-Side Validation?");