node筆記 ---持續更新

 node很坑 一起來優化吧

// 執行cmd命令 最穩妥模式 跟在cmd窗口上 輸入運行一模一樣
function cmdSync(str) {
    var ls = child_process.spawnSync('cmd',['/c', str],{windowsVerbatimArguments:true});
    //return iconv.decode(ls.stdout,'gbk')+iconv.decode(ls.stderr,'gbk')

}

 

node忽略https證書錯誤問題

//方案1:在代碼中，在調用之前 https.request() 加入
global.process.env["NODE_TLS_REJECT_UNAUTHORIZED"] = 0;

//方案2:設置忽略
var req = https.request({ 
      host: '192.168.1.1', 
      port: 443,
      path: '/',
      method: 'GET',
      rejectUnauthorized: false,
      requestCert: true,
      agent: false
    },

//列隊加載資源調度 不卡死 
var cbb =[];

var vc=false,
date=new Date().getTime(),
len=cbb.length,
cwd =process.cwd();
setInterval(()=>{
    var aabb;

        aabb=cbb.pop(); 
        if(aabb){
            require(cwd+aabb);
        }else{
            if(vc)return;
            vc=true;
            clearInterval(aaccdd);
            console.log('require緩存加載完成!locadCache.js '+(new Date().getTime()-date));
            return;
        }

},0);

nwjs 異常終止 注意啦 連拋2次異常

var sqlite3 = require('sqlite3').verbose();
var db = new sqlite3.Database(':memory:');

process.on('uncaughtException', function () {console.log('Caught exception: ' ,arguments);});

db.all("select * from test",function(err,res){

db.all("select * from test",function(err,res){
	throw new Error(123);
});
throw new Error(123);
});

nw 0.14.7 LTS