the.com/lambda
A function with no name, living fast and dying at the end of the line.
means A small anonymous function you define right where you use it, instead of naming it and giving it a proper home elsewhere.
from From the Greek letter λ, borrowed by logician Alonzo Church in the 1930s for his 'lambda calculus,' a notation for describing functions purely by their input-output behavior, with no name attached. Church reportedly landed on the symbol almost by accident of typesetting and notation history, not deep symbolism — but it stuck, and decades later programming languages inherited both the math and the Greek letter to mean the same thing: a function that needs no name to do its job.
- origin
- Named after Alonzo Church's lambda calculus notation
- AWS twist
- Also means code that runs without a server
- Greek roots
- 11th letter, also means wavelength in physics
- programmer love
- Lets you pass logic around like a variable