Simple JavaScript Expression Evaluator

simple-eval is a focused JavaScript library designed for evaluating simple expressions safely, providing an alternative to the native `eval()` function with a controlled execution environment. The current stable version is 2.0.0. It aims for a moderate release cadence, primarily for maintenance, bug fixes, or minor feature additions. A key differentiator is its limited instruction set, which enhances security by disallowing declarations, assignments, and complex statements, making it safer than direct `eval` for untrusted input, though it does not provide a full sandbox. It uses `jsep` as the default AST parser but supports any ESTree compliant parser like `acorn`, `@babel/parser`, or `esprima`, offering flexibility in parsing logic. This makes it suitable for scenarios requiring lightweight, controlled expression evaluation.