wuqian

var RES_MAX = 10;
var count = 0;
function foo () {
    if (count > RES_MAX) {
        //出让cpu,等待并发任务完成
        return process.nextTick(foo);
    }

    //do the real work here
    count ++;

wuqian

var http = require('http');

var options = {
    host: 'www.baidu.com',
    port: 80,
    path: '/s?wd=gfw'
};

var Iconv = require('iconv').Iconv;

wuqian

var async = require('async');
var http = require('http');

function getPage(callback) {
    http.get('http://www.baidu.com', function(res) {
        var buffers = [];
        var size = 0;
        res.on('data', function(buffer) {
            buffers.push(buffer);
            size += buffer.length;

wuqian

http://www.mongodb.org/display/DOCS/dbshell+%28mongo%29+Reference

wuqian

sudo /Developer/Library/uninstall-devtools --mode=all

wuqian

//定义
SEL class_func;

//赋值
@interface foo
   -(int)add:int val;
@end
class_func = @selector(add:int);

//执行

wuqian

hdiutil convert -format UDRW -o <output-file> <input-iso-file>
diskutil list /dev/disk
diskutil unmountDisk /dev/diskN
dd if=<dmg-file> of=/dev/rdisk1 

wuqian

1. 系统安装
2. 网络链接
3. 显卡驱动安装
4. git安装
5. vim安装
6. 中文/输入法安装

wuqian

(reduce conj '() [1 2 3 4])

wuqian

private final static int clamp(int x, int low, int high) {
    return (x < low) ? low : ((x > high) ? high : x);
}