You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.2 KiB
75 lines
2.2 KiB
 |
|
======= |
|
A Long class for representing a 64-bit two's-complement integer value derived from the [Closure Library](https://code.google.com/p/closure-library/) |
|
for stand-alone use and extended with unsigned support. |
|
|
|
Why? |
|
---- |
|
As of the [ECMAScript specification](http://ecma262-5.com/ELS5_HTML.htm#Section_8.5), number types have a maximum value |
|
of 2^53. Beyond that, behaviour might be unexpected. Furthermore, bitwise operations can only be performed on 32bit |
|
numbers. However, in some use cases it is required to be able to perform reliable mathematical and/or bitwise operations |
|
on the full 64bits. This is where Long.js comes into play. |
|
|
|
Features |
|
-------- |
|
* [CommonJS](http://www.commonjs.org/) compatible |
|
* [RequireJS](http://requirejs.org/)/AMD compatible |
|
* Shim compatible (include the script, then use var Long = dcodeIO.Long;) |
|
* [node.js](http://nodejs.org) compatible, also available via [npm](https://npmjs.org/package/long) |
|
* Fully documented using [jsdoc3](https://github.com/jsdoc3/jsdoc) |
|
* API-compatible to the Closure Library implementation |
|
* Zero production dependencies |
|
* Small footprint |
|
|
|
Usage |
|
----- |
|
|
|
#### node.js / CommonJS #### |
|
|
|
Install: `npm install long` |
|
|
|
```javascript |
|
var Long = require("long"); |
|
var longVal = new Long(0xFFFFFFFF, 0x7FFFFFFF); |
|
console.log(longVal.toString()); |
|
... |
|
``` |
|
|
|
#### RequireJS / AMD #### |
|
|
|
````javascript |
|
require.config({ |
|
"paths": { |
|
"Math/Long": "/path/to/Long.js" |
|
} |
|
}); |
|
require(["Math/Long"], function(Long) { |
|
var longVal = new Long(0xFFFFFFFF, 0x7FFFFFFF); |
|
console.log(longVal.toString()); |
|
}); |
|
```` |
|
|
|
### Browser / shim #### |
|
|
|
```html |
|
<script src="Long.min.js"></script> |
|
``` |
|
|
|
```javascript |
|
var Long = dcodeIO.Long; |
|
var longVal = new Long(0xFFFFFFFF, 0x7FFFFFFF); |
|
alert(longVal.toString()); |
|
``` |
|
|
|
Documentation |
|
------------- |
|
* [View the API documentation](http://htmlpreview.github.com/?http://github.com/dcodeIO/Long.js/master/docs/Long.html) |
|
|
|
Downloads |
|
--------- |
|
* [ZIP-Archive](https://github.com/dcodeIO/Long.js/archive/master.zip) |
|
* [Tarball](https://github.com/dcodeIO/Long.js/tarball/master) |
|
|
|
License |
|
------- |
|
Apache License, Version 2.0 - http://www.apache.org/licenses/LICENSE-2.0.html
|
|
|