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| 1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 36 // | 36 // |
| 37 // Array.prototype.filter | 37 // Array.prototype.filter |
| 38 // | 38 // |
| 39 (function() { | 39 (function() { |
| 40 // Simple use. | 40 // Simple use. |
| 41 var a = [0,1]; | 41 var a = [0,1]; |
| 42 assertArrayEquals([0], a.filter(function(n) { return n == 0; })); | 42 assertArrayEquals([0], a.filter(function(n) { return n == 0; })); |
| 43 assertArrayEquals(a, a); | 43 assertArrayEquals(a, a); |
| 44 | 44 |
| 45 // Use specified object as this object when calling the function. | 45 // Use specified object as this object when calling the function. |
| 46 var o = { value: 42 } | 46 var o = { value: 42 }; |
| 47 a = [1,42,3,42,4]; | 47 a = [1,42,3,42,4]; |
| 48 assertArrayEquals([42,42], a.filter(function(n) { return this.value == n }, o)
) | 48 assertArrayEquals([42,42], |
| 49 a.filter(function(n) { return this.value == n; }, o)); |
| 49 | 50 |
| 50 // Modify original array. | 51 // Modify original array. |
| 51 a = [1,42,3,42,4]; | 52 a = [1,42,3,42,4]; |
| 52 assertArrayEquals([42,42], a.filter(function(n, index, array) { array[index] =
43; return 42 == n; })); | 53 assertArrayEquals([42,42], a.filter(function(n, index, array) { |
| 54 array[index] = 43; |
| 55 return 42 == n; |
| 56 })); |
| 53 assertArrayEquals([43,43,43,43,43], a); | 57 assertArrayEquals([43,43,43,43,43], a); |
| 54 | 58 |
| 55 // Only loop through initial part of array eventhough elements are | 59 // Only loop through initial part of array eventhough elements are |
| 56 // added. | 60 // added. |
| 57 a = [1,1]; | 61 a = [1,1]; |
| 58 assertArrayEquals([], a.filter(function(n, index, array) { array.push(n+1); re
turn n == 2; })); | 62 assertArrayEquals([], a.filter(function(n, index, array) { |
| 63 array.push(n+1); |
| 64 return n == 2; |
| 65 })); |
| 59 assertArrayEquals([1,1,2,2], a); | 66 assertArrayEquals([1,1,2,2], a); |
| 60 | 67 |
| 61 // Respect holes. | 68 // Respect holes. |
| 62 a = new Array(20); | 69 a = new Array(20); |
| 63 var count = 0; | 70 var count = 0; |
| 64 a[2] = 2; | 71 a[2] = 2; |
| 65 a[15] = 2; | 72 a[15] = 2; |
| 66 a[17] = 4; | 73 a[17] = 4; |
| 67 var a = a.filter(function(n) { count++; return n == 2; }); | 74 var a = a.filter(function(n) { count++; return n == 2; }); |
| 68 assertEquals(3, count); | 75 assertEquals(3, count); |
| 69 for (var i in a) assertEquals(2, a[i]); | 76 for (var i in a) assertEquals(2, a[i]); |
| 70 | 77 |
| 71 })(); | 78 })(); |
| 72 | 79 |
| 73 | 80 |
| 74 // | 81 // |
| 75 // Array.prototype.forEach | 82 // Array.prototype.forEach |
| 76 // | 83 // |
| 77 (function() { | 84 (function() { |
| 78 // Simple use. | 85 // Simple use. |
| 79 var a = [0,1]; | 86 var a = [0,1]; |
| 80 var count = 0; | 87 var count = 0; |
| 81 a.forEach(function(n) { count++; }); | 88 a.forEach(function(n) { count++; }); |
| 82 assertEquals(2, count); | 89 assertEquals(2, count); |
| 83 | 90 |
| 84 // Use specified object as this object when calling the function. | 91 // Use specified object as this object when calling the function. |
| 85 var o = { value: 42 } | 92 var o = { value: 42 }; |
| 86 var result = []; | 93 var result = []; |
| 87 a.forEach(function(n) { result.push(this.value); }, o); | 94 a.forEach(function(n) { result.push(this.value); }, o); |
| 88 assertArrayEquals([42,42], result); | 95 assertArrayEquals([42,42], result); |
| 89 | 96 |
| 90 // Modify original array. | 97 // Modify original array. |
| 91 a = [0,1]; | 98 a = [0,1]; |
| 92 count = 0; | 99 count = 0; |
| 93 a.forEach(function(n, index, array) { array[index] = n + 1; count++; }); | 100 a.forEach(function(n, index, array) { array[index] = n + 1; count++; }); |
| 94 assertEquals(2, count); | 101 assertEquals(2, count); |
| 95 assertArrayEquals([1,2], a); | 102 assertArrayEquals([1,2], a); |
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| 111 | 118 |
| 112 })(); | 119 })(); |
| 113 | 120 |
| 114 | 121 |
| 115 // | 122 // |
| 116 // Array.prototype.every | 123 // Array.prototype.every |
| 117 // | 124 // |
| 118 (function() { | 125 (function() { |
| 119 // Simple use. | 126 // Simple use. |
| 120 var a = [0,1]; | 127 var a = [0,1]; |
| 121 assertFalse(a.every(function(n) { return n == 0 })); | 128 assertFalse(a.every(function(n) { return n == 0; })); |
| 122 a = [0,0]; | 129 a = [0,0]; |
| 123 assertTrue(a.every(function(n) { return n == 0 })); | 130 assertTrue(a.every(function(n) { return n == 0; })); |
| 124 assertTrue([].every(function(n) { return n == 0})); | 131 assertTrue([].every(function(n) { return n == 0; })); |
| 125 | 132 |
| 126 // Use specified object as this object when calling the function. | 133 // Use specified object as this object when calling the function. |
| 127 var o = { value: 42 } | 134 var o = { value: 42 }; |
| 128 a = [0]; | 135 a = [0]; |
| 129 assertFalse(a.every(function(n) { return this.value == n; }, o)); | 136 assertFalse(a.every(function(n) { return this.value == n; }, o)); |
| 130 a = [42]; | 137 a = [42]; |
| 131 assertTrue(a.every(function(n) { return this.value == n; }, o)); | 138 assertTrue(a.every(function(n) { return this.value == n; }, o)); |
| 132 | 139 |
| 133 // Modify original array. | 140 // Modify original array. |
| 134 a = [0,1]; | 141 a = [0,1]; |
| 135 assertFalse(a.every(function(n, index, array) { array[index] = n + 1; return n
== 1;})); | 142 assertFalse(a.every(function(n, index, array) { array[index] = n + 1; return n
== 1;})); |
| 136 assertArrayEquals([1,1], a); | 143 assertArrayEquals([1,1], a); |
| 137 | 144 |
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| 156 // | 163 // |
| 157 (function() { | 164 (function() { |
| 158 var a = [0,1,2,3,4]; | 165 var a = [0,1,2,3,4]; |
| 159 | 166 |
| 160 // Simple use. | 167 // Simple use. |
| 161 var result = [1,2,3,4,5]; | 168 var result = [1,2,3,4,5]; |
| 162 assertArrayEquals(result, a.map(function(n) { return n + 1; })); | 169 assertArrayEquals(result, a.map(function(n) { return n + 1; })); |
| 163 assertEquals(a, a); | 170 assertEquals(a, a); |
| 164 | 171 |
| 165 // Use specified object as this object when calling the function. | 172 // Use specified object as this object when calling the function. |
| 166 var o = { delta: 42 } | 173 var o = { delta: 42 }; |
| 167 result = [42,43,44,45,46]; | 174 result = [42,43,44,45,46]; |
| 168 assertArrayEquals(result, a.map(function(n) { return this.delta + n; }, o)); | 175 assertArrayEquals(result, a.map(function(n) { return this.delta + n; }, o)); |
| 169 | 176 |
| 170 // Modify original array. | 177 // Modify original array. |
| 171 a = [0,1,2,3,4]; | 178 a = [0,1,2,3,4]; |
| 172 result = [1,2,3,4,5]; | 179 result = [1,2,3,4,5]; |
| 173 assertArrayEquals(result, a.map(function(n, index, array) { array[index] = n +
1; return n + 1;})); | 180 assertArrayEquals(result, a.map( |
| 181 function(n, index, array) { array[index] = n + 1; return n + 1;})); |
| 174 assertArrayEquals(result, a); | 182 assertArrayEquals(result, a); |
| 175 | 183 |
| 176 // Only loop through initial part of array eventhough elements are | 184 // Only loop through initial part of array eventhough elements are |
| 177 // added. | 185 // added. |
| 178 a = [0,1,2,3,4]; | 186 a = [0,1,2,3,4]; |
| 179 result = [1,2,3,4,5]; | 187 result = [1,2,3,4,5]; |
| 180 assertArrayEquals(result, a.map(function(n, index, array) { array.push(n); ret
urn n + 1;})); | 188 assertArrayEquals(result, a.map(function(n, index, array) { |
| 189 array.push(n); |
| 190 return n + 1; |
| 191 })); |
| 181 assertArrayEquals([0,1,2,3,4,0,1,2,3,4], a); | 192 assertArrayEquals([0,1,2,3,4,0,1,2,3,4], a); |
| 182 | 193 |
| 183 // Respect holes. | 194 // Respect holes. |
| 184 a = new Array(20); | 195 a = new Array(20); |
| 185 a[15] = 2; | 196 a[15] = 2; |
| 186 a = a.map(function(n) { return 2*n; }); | 197 a = a.map(function(n) { return 2*n; }); |
| 187 for (var i in a) assertEquals(4, a[i]); | 198 for (var i in a) assertEquals(4, a[i]); |
| 188 | 199 |
| 189 })(); | 200 })(); |
| 190 | 201 |
| 191 // | 202 // |
| 192 // Array.prototype.some | 203 // Array.prototype.some |
| 193 // | 204 // |
| 194 (function() { | 205 (function() { |
| 195 var a = [0,1,2,3,4]; | 206 var a = [0,1,2,3,4]; |
| 196 | 207 |
| 197 // Simple use. | 208 // Simple use. |
| 198 assertTrue(a.some(function(n) { return n == 3})); | 209 assertTrue(a.some(function(n) { return n == 3; })); |
| 199 assertFalse(a.some(function(n) { return n == 5})); | 210 assertFalse(a.some(function(n) { return n == 5; })); |
| 200 | 211 |
| 201 // Use specified object as this object when calling the function. | 212 // Use specified object as this object when calling the function. |
| 202 var o = { element: 42 }; | 213 var o = { element: 42 }; |
| 203 a = [1,42,3]; | 214 a = [1,42,3]; |
| 204 assertTrue(a.some(function(n) { return this.element == n; }, o)); | 215 assertTrue(a.some(function(n) { return this.element == n; }, o)); |
| 205 a = [1]; | 216 a = [1]; |
| 206 assertFalse(a.some(function(n) { return this.element == n; }, o)); | 217 assertFalse(a.some(function(n) { return this.element == n; }, o)); |
| 207 | 218 |
| 208 // Modify original array. | 219 // Modify original array. |
| 209 a = [0,1,2,3]; | 220 a = [0,1,2,3]; |
| 210 assertTrue(a.some(function(n, index, array) { array[index] = n + 1; return n =
= 2; })); | 221 assertTrue(a.some(function(n, index, array) { |
| 222 array[index] = n + 1; |
| 223 return n == 2; |
| 224 })); |
| 211 assertArrayEquals([1,2,3,3], a); | 225 assertArrayEquals([1,2,3,3], a); |
| 212 | 226 |
| 213 // Only loop through initial part when elements are added. | 227 // Only loop through initial part when elements are added. |
| 214 a = [0,1,2]; | 228 a = [0,1,2]; |
| 215 assertFalse(a.some(function(n, index, array) { array.push(42); return n == 42;
})); | 229 assertFalse(a.some(function(n, index, array) { |
| 230 array.push(42); |
| 231 return n == 42; |
| 232 })); |
| 216 assertArrayEquals([0,1,2,42,42,42], a); | 233 assertArrayEquals([0,1,2,42,42,42], a); |
| 217 | 234 |
| 218 // Respect holes. | 235 // Respect holes. |
| 219 a = new Array(20); | 236 a = new Array(20); |
| 220 var count = 0; | 237 var count = 0; |
| 221 a[2] = 42; | 238 a[2] = 42; |
| 222 a[10] = 2; | 239 a[10] = 2; |
| 223 a[15] = 42; | 240 a[15] = 42; |
| 224 assertTrue(a.some(function(n) { count++; return n == 2; })); | 241 assertTrue(a.some(function(n) { count++; return n == 2; })); |
| 225 assertEquals(2, count); | 242 assertEquals(2, count); |
| 226 | 243 |
| 227 })(); | 244 })(); |
| 228 | |
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