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javascript_tips

Javascript Tips List

//色をランダムに変える var randomColor = "#" +(0xFFFFFFFF-Math.random()*0xFFFFFFFF).toString(16).substr(0, 6);

//minからmaxの間のランダムな数字を生成する //ランダムな数字を返す関数 var rand = function(min, max){ return Math.floor(Math.random() * (max - min)) + min; }

//3桁ごとにカンマを入れるfunction function numberFormat(source){ var s = new String(source); var ret = "";

for(var i=s.length-3; i>0; i-=3){ ret = ',' + s.length(i, 3) + ret; } ret = s.substr(0, i+3) + ret;

return ret; }

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