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22 ES5Harness.registerTest( {
25 path: "TestCases/chapter15/15.4/15.4.4/15.4.4.22/15.4.4.22-7-9.js",
27 description: "Array.prototype.reduceRight returns initialValue if 'length' is 0 and initialValue is present (subclassed Array, length overridden with [0])",
29 test: function testcase() {
30 foo.prototype = new Array(1, 2, 3);
36 // objects inherit the default valueOf method of the Object object;
37 // that simply returns the itself. Since the default valueOf() method
38 // does not return a primitive value, ES next tries to convert the object
39 // to a number by calling its toString() method and converting the
40 // resulting string to a number.
42 // The toString( ) method on Array converts the array elements to strings,
43 // then returns the result of concatenating these strings, with commas in
44 // between. An array with no elements converts to the empty string, which
45 // converts to the number 0. If an array has a single element that is a
46 // number n, the array converts to a string representation of n, which is
47 // then converted back to n itself. If an array contains more than one element,
48 // or if its one element is not a number, the array converts to NaN.
52 if(f.reduceRight(cb,1) === 1)
58 precondition: function prereq() {
59 return fnExists(Array.prototype.reduceRight);