This file is indexed.

/usr/lib/nodejs/es5-ext/object/is-number-value.js is in node-es5-ext 0.10.30-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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"use strict";

var isValue = require("./is-value");

module.exports = function (value) {
	if (!isValue(value)) return false;
	try {
		return !isNaN(value);
	} catch (e) {
		return false;
	}
};