回答編集履歴
1
chousei
answer
CHANGED
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@@ -68,4 +68,52 @@
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68
68
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(1秒待って)
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69
69
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3
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70
70
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he
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71
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-
※すでにasnycFuncが処理済みなのでhe likesは表示されない
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71
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+
※すでにasnycFuncが処理済みなのでhe likesは表示されない
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72
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+
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73
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# さらに
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74
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+
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75
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```javascript
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76
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const asyncFunc=()=>{
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77
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return new Promise(resolve=>{
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78
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setTimeout(()=>{
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79
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console.log(3);
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80
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resolve("he");
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81
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},1000);
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82
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});
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83
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}
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84
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85
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const wait=async()=>{
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86
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console.log(2.1);
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87
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console.log(2.2);
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88
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await console.log(2.3);
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89
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console.log(2.4);
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90
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console.log(2.5);
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91
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let a = await asyncFunc().then(val=>{
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92
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console.log(val);
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93
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return val + " likes";
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94
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});
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95
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console.log(a);
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96
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console.log(5);
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97
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}
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98
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99
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console.log(1);
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100
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wait();
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101
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console.log(4.1);
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102
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for(var i=0;i<999999999;i++){} //同期処理で重めのループ
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103
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console.log(4.2);
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104
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```
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105
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結果：
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106
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1
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107
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2.1
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108
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2.2
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109
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2.3 //ここでawaitがかかるので処理が移り
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110
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4.1
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111
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(ちょっと考え込んで)
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112
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4.2 //同期処理が続くので終了まで待ち
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113
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2.4 //元の処理にもど
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114
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2.5
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115
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(１秒待って)
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116
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3
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117
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he
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118
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he likes
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119
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5
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