blob: e833b83d2291d75c22971ca5286b5474a3b8f2aa (
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
|
# once
Only call a function once.
## usage
```javascript
var once = require('once')
function load (file, cb) {
cb = once(cb)
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Or add to the Function.prototype in a responsible way:
```javascript
// only has to be done once
require('once').proto()
function load (file, cb) {
cb = cb.once()
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Ironically, the prototype feature makes this module twice as
complicated as necessary.
|
