yaegaki

var Apply = function(){
  Function.apply.apply(arguments[0], [arguments[1], arguments[2]]);
}

var func = function(){
  console.log(this);
  console.log(arguments);
}

Apply(func, window, [1,2,3]);

yaegaki

function toFunc(){
	try{
		var func = "temp=function(";
		var args = this.match(/^\[(.+)\]/);
		var body = this;
		if(args){
			func += args[1];
			body = body.replace(/^\[(.+)\]/,"");
		}
		func += "){"+body+"}";

yaegaki

#include <iostream>
#include <initializer_list>

class test{
public:
    test(std::initializer_list<int> list){
        for(auto it = list.begin();it != list.end();++it){
            sum += *it;
        }
    }

yaegaki

function startThread(thread_callback, args, result_callback){
  var script = new Blob(['onmessage = function(e){postMessage(('+thread_callback.toString()+').apply(null, e.data));}']);
	var worker = new Worker(URL.createObjectURL(script));
	worker.onmessage = function(e){
		result_callback(e.data);
		URL.revokeObjectURL(script);
	}
	worker.postMessage(args);
}

yaegaki

var uint8array = new Uint8Array(arrayBuffer);  //arrayBufferにはデータが入っているとする
var value = (uint8array[0] << 8) + uint8array[1];
if(value & 0x8000){
    value = -((value - 1) ^ 0xffff);    //2の補数計算
}
alert(value);    //valueに変換された値

yaegaki

function download(url, name){
    var a = document.createElement('a');
    a.href = url;
    a.setAttribute('download', name || 'noname');
    a.dispatchEvent(new CustomEvent('click'));
}

yaegaki

.target{
    width:/*ImageWidth*/;
    height:/*ImageHeight*/;
    background-image: url(Octcat.png);
}

yaegaki

<input ng-model="hoge" type="text">
<h1>{{hoge}}</h1>

yaegaki

$('body').on('dragover', function(e){
    e.stopPropagation();
    e.preventDefault();
    $('#overlay').fadeIn(300);
});

$('body').on('dragleave', function(e){
    e.stopPropagation();
    e.preventDefault();
    $('#overlay').fadeOut(300);

yaegaki

<div ng-app="myApp">
    <div ng-controller="testCtrl">
        {{hoge}}
    </div>
</div>