📝Some programming languages become popular because they offer a quick upgrade

source: Feldman₂₀₁₉

Some languages provide a quick and almost effortless update from another language (e.g., they can offer a tool convert code automatically). Usually, very compatible, with some added features, and better syntax.

Examples:

C → C++
JavaScript → CoffeeScript (but died off when JavaScript catched up)
JavaScript → TypeScript
Java → Kotlin

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📝 Languages become popular when they bring innovative runtime