// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-%typedarray%.prototype.join description: > Concatenates the result of toString for each value with custom separator info: | 22.2.3.15 %TypedArray%.prototype.join ( separator ) %TypedArray%.prototype.join is a distinct function that implements the same algorithm as Array.prototype.join as defined in 22.1.3.13 except that the this object's [[ArrayLength]] internal slot is accessed in place of performing a [[Get]] of "length". 22.1.3.13 Array.prototype.join (separator) ... 7. If element0 is undefined or null, let R be the empty String; otherwise, let R be ? ToString(element0). 8. Let k be 1. 9. Repeat, while k < len a. Let S be the String value produced by concatenating R and sep. b. Let element be ? Get(O, ! ToString(k)). c. If element is undefined or null, let next be the empty String; otherwise, let next be ? ToString(element). d. Let R be a String value produced by concatenating S and next. ... includes: [testTypedArray.js] features: [TypedArray] ---*/ testWithTypedArrayConstructors(function(TA) { var sample = new TA([1, 0, 2, 3, 42, 127]); var result; result = sample.join(","); assert.sameValue(result, "1,0,2,3,42,127"); result = sample.join(undefined); assert.sameValue(result, "1,0,2,3,42,127"); result = sample.join(null); assert.sameValue(result, "1null0null2null3null42null127"); result = sample.join(",,"); assert.sameValue(result, "1,,0,,2,,3,,42,,127"); result = sample.join(0); assert.sameValue(result, "10002030420127"); result = sample.join(""); assert.sameValue(result, "102342127"); result = sample.join(" a b c "); assert.sameValue(result, "1 a b c 0 a b c 2 a b c 3 a b c 42 a b c 127"); result = sample.join({}); assert.sameValue(result, "1[object Object]0[object Object]2[object Object]3[object Object]42[object Object]127"); result = sample.join(true); assert.sameValue(result, "1true0true2true3true42true127"); result = sample.join({ toString: function() { return "foo"; }}); assert.sameValue(result, "1foo0foo2foo3foo42foo127"); result = sample.join({ toString: undefined, valueOf: function() { return "bar"; }}); assert.sameValue(result, "1bar0bar2bar3bar42bar127"); result = sample.join(false); assert.sameValue(result, "1false0false2false3false42false127"); result = sample.join(-1); assert.sameValue(result, "1-10-12-13-142-1127"); result = sample.join(-0); assert.sameValue(result, "10002030420127"); }); reportCompare(0, 0);