Asserting context without consuming characters.

• Category: JS RegExp — 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 "Lookahead and Lookbehind" in one sentence, then back it up with a tiny example

// Lookahead and Lookbehind — minimal example
console.log("Lookahead and Lookbehind");