Definition
The period when your program is actually running and doing its thing, as opposed to just sitting there as lifeless code on a hard drive. It's when all your clever algorithms come alive and either work brilliantly or crash spectacularly, revealing bugs you never knew existed. Also refers to how long your program takes to execute, which is always longer than you promised the client.
Example Usage
The code compiled fine, but at runtime it immediately threw a null pointer exception and died.
Source: Programming terminology
Related Terms
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See “runtime” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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