lib/rules/no-unmodified-loop-condition.js
function hasDynamicExpressions(root) {
            let retv = false;

            Traverser.traverse(root, {
                visitorKeys: sourceCode.visitorKeys,
                enter(node) {
                    if (DYNAMIC_PATTERN.test(node.type)) {
                        retv = true;
                        this.break();
                    } else if (SKIP_PATTERN.test(node.type)) {
                        this.skip();
                    }
                }
            });

            return retv;
        }
function hasDynamicExpressions(root) {
            let retv = false;

            Traverser.traverse(root, {
                visitorKeys: sourceCode.visitorKeys,
                enter(node) {
                    if (DYNAMIC_PATTERN.test(node.type)) {
                        retv = true;
                        this.break();
                    } else if (SKIP_PATTERN.test(node.type)) {
                        this.skip();
                    }
                }
            });

            return retv;
        }
function hasDynamicExpressions ( root ) { let retv = false ; Traverser . traverse ( root , { visitorKeys : sourceCode . visitorKeys , enter ( node ) { if ( DYNAMIC_PATTERN . test ( node . type ) ) { retv = true ; this . break ( ) ; } else if ( SKIP_PATTERN . test ( node . type ) ) { this . skip ( ) ; } } } ) ; return retv ; }
Checks whether or not a given group node has any dynamic elements.

@param {ASTNode} root - A node to check.
This node is one of BinaryExpression or ConditionalExpression.
@returns {boolean} `true` if the node is dynamic.
Checks whether or not a given group node has any dynamic elements .