function check(node) {
			const value = astUtils.getStaticStringValue(node);

			if (
				typeof value === "string" &&
				value.toLowerCase().indexOf("javascript:") === 0
			) {
				context.report({ node, messageId: "unexpectedScriptURL" });
			}
		}
Check whether a node's static value starts with `javascript:` or not.
And report an error for unexpected script URL.
@param {ASTNode} node node to check
@returns {void}