Angular9 实现监听键盘回车键添加数据_angularts div监听键盘事件

作者：我家小花儿 | 2024-03-12 07:39:30

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angularts div监听键盘事件

先用keyup帮助监听键盘事件

<h2>搜索条</h2>
<div class="toDoList">
  <input type="text"  [(ngModel)]="keyword" (keyup)="doAdd($event)"/>

  <hr />
  <h3>正在运行</h3>
  <ul>
    <li *ngFor="let item of toDoData, let i = index">{{item}} <button (click)="onDelete(i)">×</button> </li>
  </ul>
  <h3>成功执行</h3>
  <ul>
    <li ></li>
  </ul>
</div>
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之后我们在Ts文件中处理键盘事件

export class ToDoListComponent implements OnInit {
  public toDoData = [];
  public keyword = '';
  constructor() {}

  ngOnInit(): void {}

  public doAdd(e: any): void {
    if (e.keyCode === 13) {
      this.toDoData.push(this.keyword);
    }
  }
}
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这里的keyCode === 13 就代表的是监听键盘上的 ‘Enter’ 键位

下面是关于keyCode的对应按键：

<tbody>
  <tr>
    <td>backspace</td>
    <td>8</td>
  </tr>
  <tr>
    <td>tab</td>
    <td>9</td>
  </tr>
  <tr>
    <td>enter</td>
    <td>13</td>
  </tr>
  <tr>
    <td>shift</td>
    <td>16</td>
  </tr>
  <tr>
    <td>ctrl</td>
    <td>17</td>
  </tr>
  <tr>
    <td>alt</td>
    <td>18</td>
  </tr>
  <tr>
    <td>pause/break</td>
    <td>19</td>
  </tr>
  <tr>
    <td>caps lock</td>
    <td>20</td>
  </tr>
  <tr>
    <td>escape</td>
    <td>27</td>
  </tr>
  <tr>
    <td>page up</td>
    <td>33</td>
  </tr>
  <tr>
    <td>Space</td>
    <td>32</td>
  </tr>
  <tr>
    <td>page down</td>
    <td>34</td>
  </tr>
  <tr>
    <td>end</td>
    <td>35</td>
  </tr>
  <tr>
    <td>home</td>
    <td>36</td>
  </tr>
  <tr>
    <td>arrow left</td>
    <td>37</td>
  </tr>
  <tr>
    <td>arrow up</td>
    <td>38</td>
  </tr>
  <tr>
    <td>arrow right</td>
    <td>39</td>
  </tr>
  <tr>
    <td>arrow down</td>
    <td>40</td>
  </tr>
  <tr>
    <td>insert</td>
    <td>45</td>
  </tr>
  <tr>
    <td>delete</td>
    <td>46</td>
  </tr>
  <tr>
    <td>0</td>
    <td>48</td>
  </tr>
  <tr>
    <td>1</td>
    <td>49</td>
  </tr>
  <tr>
    <td>2</td>
    <td>50</td>
  </tr>
  <tr>
    <td>3</td>
    <td>51</td>
  </tr>
  <tr>
    <td>4</td>
    <td>52</td>
  </tr>
  <tr>
    <td>5</td>
    <td>53</td>
  </tr>
  <tr>
    <td>6</td>
    <td>54</td>
  </tr>
  <tr>
    <td>7</td>
    <td>55</td>
  </tr>
  <tr>
    <td>8</td>
    <td>56</td>
  </tr>
  <tr>
    <td>9</td>
    <td>57</td>
  </tr>
  <tr>
    <td>a</td>
    <td>65</td>
  </tr>
  <tr>
    <td>b</td>
    <td>66</td>
  </tr>
  <tr>
    <td>c</td>
    <td>67</td>
  </tr>
  <tr>
    <td>d</td>
    <td>68</td>
  </tr>
  <tr>
    <td>e</td>
    <td>69</td>
  </tr>
  <tr>
    <td>f</td>
    <td>70</td>
  </tr>
  <tr>
    <td>g</td>
    <td>71</td>
  </tr>
  <tr>
    <td>h</td>
    <td>72</td>
  </tr>
  <tr>
    <td>i</td>
    <td>73</td>
  </tr>
  <tr>
    <td>j</td>
    <td>74</td>
  </tr>
  <tr>
    <td>k</td>
    <td>75</td>
  </tr>
  <tr>
    <td>l</td>
    <td>76</td>
  </tr>
  <tr>
    <td>m</td>
    <td>77</td>
  </tr>
  <tr>
    <td>n</td>
    <td>78</td>
  </tr>
  <tr>
    <td>o</td>
    <td>79</td>
  </tr>
  <tr>
    <td>p</td>
    <td>80</td>
  </tr>
  <tr>
    <td>q</td>
    <td>81</td>
  </tr>
  <tr>
    <td>r</td>
    <td>82</td>
  </tr>
  <tr>
    <td>s</td>
    <td>83</td>
  </tr>
  <tr>
    <td>t</td>
    <td>84</td>
  </tr>
  <tr>
    <td>u</td>
    <td>85</td>
  </tr>
  <tr>
    <td>v</td>
    <td>86</td>
  </tr>
  <tr>
    <td>w</td>
    <td>87</td>
  </tr>
  <tr>
    <td>x</td>
    <td>88</td>
  </tr>
  <tr>
    <td>y</td>
    <td>89</td>
  </tr>
  <tr>
    <td>z</td>
    <td>90</td>
  </tr>
  <tr>
    <td>left window key</td>
    <td>91</td>
  </tr>
  <tr>
    <td>right window key</td>
    <td>92</td>
  </tr>
  <tr>
    <td>select key</td>
    <td>93</td>
  </tr>
  <tr>
    <td>numpad 0</td>
    <td>96</td>
  </tr>
  <tr>
    <td>numpad 1</td>
    <td>97</td>
  </tr>
  <tr>
    <td>numpad 2</td>
    <td>98</td>
  </tr>
  <tr>
    <td>numpad 3</td>
    <td>99</td>
  </tr>
  <tr>
    <td>numpad 4</td>
    <td>100</td>
  </tr>
  <tr>
    <td>numpad 5</td>
    <td>101</td>
  </tr>
  <tr>
    <td>numpad 6</td>
    <td>102</td>
  </tr>
  <tr>
    <td>numpad 7</td>
    <td>103</td>
  </tr>
  <tr>
    <td>numpad 8</td>
    <td>104</td>
  </tr>
  <tr>
    <td>numpad 9</td>
    <td>105</td>
  </tr>
  <tr>
    <td>multiply</td>
    <td>106</td>
  </tr>
  <tr>
    <td>add</td>
    <td>107</td>
  </tr>
  <tr>
    <td>subtract</td>
    <td>109</td>
  </tr>
  <tr>
    <td>decimal point</td>
    <td>110</td>
  </tr>
  <tr>
    <td>divide</td>
    <td>111</td>
  </tr>
  <tr>
    <td>f1</td>
    <td>112</td>
  </tr>
  <tr>
    <td>f2</td>
    <td>113</td>
  </tr>
  <tr>
    <td>f3</td>
    <td>114</td>
  </tr>
  <tr>
    <td>f4</td>
    <td>115</td>
  </tr>
  <tr>
    <td>f5</td>
    <td>116</td>
  </tr>
  <tr>
    <td>f6</td>
    <td>117</td>
  </tr>
  <tr>
    <td>f7</td>
    <td>118</td>
  </tr>
  <tr>
    <td>f8</td>
    <td>119</td>
  </tr>
  <tr>
    <td>f9</td>
    <td>120</td>
  </tr>
  <tr>
    <td>f10</td>
    <td>121</td>
  </tr>
  <tr>
    <td>f1</td>
  </tr>
</tbody>
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上方表格来自于此链接，若侵直接删除
https://www.cnblogs.com/manongxiaobing/archive/2012/11/05/2755412.html

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