blob: a6e2ec70133123117261365c16583af078b0038c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
import './style.scss'
import React from 'react'
import ReactDOM from 'react-dom'
class IPAddress extends React.Component {
constructor(props) {
super(props)
this.state = {
octets: [10, 88, 135, 24],
cidr: 32,
}
}
handleChange = (event) => {
var octets = this.state.octets
var val = +event.target.value.replace(/[^0-9]/g, '')
var octet = event.target.attributes['data-octet'].value
if (octet == 'cidr') {
if (val <= 32) {
this.setState({
cidr: val
})
}
}
else {
if (val <= 255) {
octets[+octet] = val
this.setState({
octets: octets
})
}
}
}
render() {
var pretty = this.state.octets.join('.') + '/' + this.state.cidr
return <form class="ip-address">
{[...Array(4)].map((x, octet) =>
<input class="octet" type="text" data-octet={octet} onChange={this.handleChange} value={this.state.octets[octet]}/>
)}
<input class="cidr" type="text" data-octet="cidr" onChange={this.handleChange} value={this.state.cidr}/>
<h2>Result: {pretty}</h2>
<ol>
{[...Array(4)].map((x, octet) =>
<li class="octet">
<ol>
{[...Array(8)].map((x, bit) =>
<li class="bit">{(this.state.octets[octet] & (1 << (7-bit))) >> (7-bit)}</li>
)}
</ol>
</li>
)}
</ol>
</form>
}
}
ReactDOM.render(<IPAddress />, document.getElementById('app'))
|
