1. Introduction
In the work of programmers, we often encounter the submission of some form data. For things with forms, input boxes are very common, so we need to master some basic input events.
Many times in the input box, we are used to pressing Enter directly after inputting, instead of clicking the button. In the form form, you can click Enter to submit the form, but if it is just a single input box, you cannot submit the content by directly pressing Enter.
2. Method
In this case, we can use JavaScript scripts to implement the enter event of the input box. The implementation method is very simple. The jQuery framework is used here. The code is as follows: just add the following content directly in the script tag.
$(document).ready(function () {
$("input").keydown(function (event) {
if (event.keyCode == 13) {
//这里写事件，例如写个 a();
}
});
});Here is an example of an input box:
<input type="text" autocomplete="off" placeholder="请输入英文单词"></input>keycode==13 means that the Enter key is pressed, and similarly, other key trigger events can be realized by changing this code.
3. Appendix
The following is the correspondence of each keycode:
2 keyCode 8 = BackSpace BackSpace
3 keyCode 9 = Tab Tab
4 keyCode 12 = Clear
5 keyCode 13 = Enter
6 keyCode 16 = Shift_L
7 keyCode 17 = Control_L
8 keyCode 18 = Alt_L
9 keyCode 19 = pause
10 keyCode 20 = Caps_Lock
11 keyCode 27 = Escape Escape
12 keyCode 32 = space
13 keyCode 33 = Prior
14 keyCode 34 = Next
15 keyCode 35 = End
16 keyCode 36 = Home
17 keyCode 37 = Left
18 keyCode 38 = Up
19 keyCode 39 = Right
20 keyCode 40 = Down
21 keyCode 41 = Select
22 keyCode 42 = Print
23 keyCode 43 = Execute
24 keyCode 45 = Insert
25 keyCode 46 = Delete
26 keyCode 47 = Help
27 keyCode 48 = 0 equal braceright
28 keyCode 49 = 1 onesuperior exclamation
29 keyCode 50 = 2 quotedbl twosuperior
30 keyCode 51 = 3 section threesuperior
31 keyCode 52 = 4 dollar
32 keyCode 53 = 5 percent
33 keyCode 54 = 6 ampersand
34 keyCode 55 = 7 slash braceleft
35 keyCode 56 = 8 parenleft bracketleft
36 keyCode 57 = 9 parenright bracketright
37 keyCode 65 = a A
38 keyCode 66 = b B
39 keyCode 67 = c C
40 keyCode 68 = d D
41 keyCode 69 = e E EuroSign
42 keyCode 70 = f F
43 keyCode 71 = g G
44 keyCode 72 = h H
45 keyCode 73 = i I
46 keyCode 74 = j J
47 keyCode 75 = k K
48 keyCode 76 = l L
49 keyCode 77 = m M mu
50 keyCode 78 = n N
51 keyCode 79 = o O
52 keyCode 80 = p P
53 keyCode 81 = q Q at
54 keyCode 82 = r R
55 keyCode 83 = s S
56 keyCode 84 = t T
57 keyCode 85 = u U
58 keyCode 86 = v V
59 keyCode 87 = in W
60 keyCode 88 = x X
61 keyCode 89 = y Y
62 keyCode 90 = with Z
63 keyCode 96 = KP_0 KP_0
64 keyCode 97 = KP_1 KP_1
65 keyCode 98 = KP_2 KP_2
66 keyCode 99 = KP_3 KP_3
67 keyCode 100 = KP_4 KP_4
68 keyCode 101 = KP_5 KP_5
69 keyCode 102 = KP_6 KP_6
70 keyCode 103 = KP_7 KP_7
71 keyCode 104 = KP_8 KP_8
72 keyCode 105 = KP_9 KP_9
73 keyCode 106 = KP_Multiply KP_Multiply
74 keyCode 107 = KP_Add KP_Add
75 keyCode 108 = KP_Separator KP_Separator
76 keyCode 109 = KP_Subtract KP_Subtract
77 keyCode 110 = KP_Decimal KP_Decimal
78 keyCode 111 = KP_Divide KP_Divide
79 keyCode 112 = F1
80 keyCode 113 = F2
81 keyCode 114 = F3
82 keyCode 115 = F4
83 keyCode 116 = F5
84 keyCode 117 = F6
85 keyCode 118 = F7
86 keyCode 119 = F8
87 keyCode 120 = F9
88 keyCode 121 = F10
89 keyCode 122 = F11
90 keyCode 123 = F12
91 keyCode 124 = F13
92 keyCode 125 = F14
93 keyCode 126 = F15
94 keyCode 127 = F16
95 keyCode 128 = F17
96 keyCode 129 = F18
97 keyCode 130 = F19
98 keyCode 131 = F20
99 keyCode 132 = F21
100 keyCode 133 = F22
101 keyCode 134 = F23
102 keyCode 135 = F24
103 keyCode 136 = Num_Lock
104 keyCode 137 = Scroll_Lock
105 keyCode 187 = acute grave