eslint-plugin-unicorn-x/rules/utils/is-left-hand-side.js

More than 100 powerful ESLint rules

const isLeftHandSide = (node) =>
	((node.parent.type === 'AssignmentExpression' ||
		node.parent.type === 'AssignmentPattern') &&
		node.parent.left === node) ||
	(node.parent.type === 'UpdateExpression' && node.parent.argument === node) ||
	(node.parent.type === 'ArrayPattern' &&
		node.parent.elements.includes(node)) ||
	(node.parent.type === 'Property' &&
		node.parent.value === node &&
		node.parent.parent.type === 'ObjectPattern' &&
		node.parent.parent.properties.includes(node.parent)) ||
	(node.parent.type === 'UnaryExpression' &&
		node.parent.operator === 'delete' &&
		node.parent.argument === node);

export default isLeftHandSide;