質問編集履歴
3
追加
test
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File without changes
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test
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@@ -77,3 +77,117 @@
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77
77
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}
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78
78
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79
79
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```
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80
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81
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82
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83
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```swift
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84
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85
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let aArray_nilAble: [Int]? = [Int](0...100)
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86
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+
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87
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let bArray = [Int](200...300)
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88
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89
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90
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91
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func hoge() -> Bool {
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92
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93
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94
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95
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guard let aArray = aArray_nilAble else { return false }
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96
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+
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97
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+
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98
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99
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return !aArray.filter(bArray.contains).isEmpty
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100
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+
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101
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102
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103
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// 重複あり[(0...100)-(50...150)]: 0.22072505950927734
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104
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+
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105
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// 重複なし[(0...100)-(200...300)]: 0.30579400062561035
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106
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+
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107
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}
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108
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+
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109
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110
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111
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func fuga() -> Bool {
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112
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113
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114
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115
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guard let aArray = aArray_nilAble else { return false }
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116
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117
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118
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119
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return aArray.contains(where: bArray.contains)
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120
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121
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122
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123
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// 重複あり[(0...100)-(50...150)]: 0.1724480390548706
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124
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+
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125
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// 重複なし[(0...100)-(200...300)]: 0.3085750341415405
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126
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127
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}
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128
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129
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130
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131
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func piyo() -> Bool {
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132
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133
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134
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135
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guard let aArray = aArray_nilAble else { return false }
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136
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137
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let aSet = Set(aArray)
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138
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139
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let bSet = Set(bArray)
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140
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141
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142
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143
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return !(aSet.isDisjoint(with: bSet))
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144
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145
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146
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147
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// 重複あり[(0...100)-(50...150)]: 0.17476892471313477
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148
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149
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// 重複なし[(0...100)-(200...300)]: 0.1812349557876587
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150
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151
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}
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152
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153
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154
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155
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// 100回繰り返す
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156
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157
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func repeatProcess() {
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158
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159
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160
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161
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for _ in 1...100 {
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162
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163
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print(piyo())
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164
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165
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}
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166
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167
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168
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169
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}
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170
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171
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172
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173
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// 計測
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174
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175
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176
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177
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let start = Date()
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178
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179
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180
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181
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repeatProcess()
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182
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183
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184
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185
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let elapsed = Date().timeIntervalSince(start)
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186
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+
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187
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188
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189
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print(elapsed)
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190
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191
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192
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193
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```
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2
訂正
test
CHANGED
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File without changes
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test
CHANGED
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@@ -42,6 +42,10 @@
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42
42
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43
43
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44
44
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45
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+
エラーがでます
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46
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47
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+
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48
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+
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45
49
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```swift
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46
50
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47
51
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1
追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -39,3 +39,37 @@
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39
39
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40
40
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41
41
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```
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|
42
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+
|
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43
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+
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44
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+
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|
45
|
+
```swift
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|
46
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+
|
|
47
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+
|
|
48
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+
|
|
49
|
+
// 面倒なので[int]で、
|
|
50
|
+
|
|
51
|
+
let indexPaths = [1, 2, 3, 4]
|
|
52
|
+
|
|
53
|
+
let selectedRowsIndexPaths = [6, 7, 8, 9]
|
|
54
|
+
|
|
55
|
+
|
|
56
|
+
|
|
57
|
+
|
|
58
|
+
|
|
59
|
+
func hoge() -> Bool {
|
|
60
|
+
|
|
61
|
+
indexPaths.forEach{
|
|
62
|
+
|
|
63
|
+
if selectedRowsIndexPaths.contains($0) {
|
|
64
|
+
|
|
65
|
+
return true // <= error / Unexpected non-void return value in void function
|
|
66
|
+
|
|
67
|
+
}
|
|
68
|
+
|
|
69
|
+
}
|
|
70
|
+
|
|
71
|
+
return false
|
|
72
|
+
|
|
73
|
+
}
|
|
74
|
+
|
|
75
|
+
```
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