function eq(value, other) {
	  return value === other || (value !== value && other !== other);
	}
Performs a
[`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
comparison between two values to determine if they are equivalent.

@static
@memberOf _
@since 4.0.0
@category Lang
@param {*} value The value to compare.
@param {*} other The other value to compare.
@returns {boolean} Returns `true` if the values are equivalent, else `false`.
@example

var object = { 'user': 'fred' };
var other = { 'user': 'fred' };

_.eq(object, object);
// => true

_.eq(object, other);
// => false

_.eq('a', 'a');
// => true

_.eq('a', Object('a'));
// => false

_.eq(NaN, NaN);
// => true