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Function: validateExpression()

validateExpression(expr, knownVariables?): void

Defined in: javascript/src/expr.ts:569

Validate that an expression string is safe and syntactically valid.

Parameters​

expr​

string

The expression source.

knownVariables?​

Iterable<string, any, any>

Optional set of metric variable names allowed in the expression. When provided (config-load passes the metric set from PricingEngine.buildVariables), any identifier not in this set and not an allowed function is rejected (M5) — typos fail at load, not at runtime.

Returns​

void