Chapter 01 · foundation · runs in browser
CEL fundamentals
Understand what a CEL expression is, where its values come from, and how it produces one result.
01Expressions and valuesRun a self-contained CEL expression and an expression with external JSON data.Try CEL02Types and variablesUse strings, numbers, and booleans without hidden automatic conversions.Try CEL03Operators and logicCombine a comparison, list membership, and a logical condition.Try CEL04Conditions and errorsChoose between two values and fix an error in an expression or its data.Try CEL