cognitom/gist:1011960

## gistfile1.js
String.prototype.cnvPhone = function(defaultPrefix){
	var str0 = this, str1, str;
	str1 = str0.replace(/[^\d]/g, '');
	if (defaultPrefix && /^[^0]/.test(str1)) str1 = defaultPrefix+str1;//0以外で始まる場合、デフォルトの局番を追加
	str = str1;
	str = str.replace(/^0(9969|9913|9912|9802|9496|8636|8514|8512|8477|8396|8388|8387|7468|5979|5769|4998|4996|4994|4992|1658|1656|1655|1654|1648|1635|1634|1632|1587|1586|1564|1558|1547|1466|1457|1456|1398|1397|1392|1377|1374|1372|1267)(\d)(\d{4})$/, "0$1-$2-$3");//固定電話市外4桁
	str = str.replace(/^0(997|996|995|994|993|987|986|985|984|983|982|980|979|978|977|974|973|972|969|968|967|966|965|964|959|957|956|955|954|952|950|949|948|947|946|944|943|942|940|930|920|898|897|896|895|894|893|892|889|887|885|884|883|880|879|877|875|869|868|867|866|865|863|859|858|857|856|855|854|853|852|848|847|846|845|838|837|836|835|834|833|829|827|826|824|823|820|799|798|797|796|795|794|791|790|779|778|776|774|773|772|771|770|768|767|766|765|763|761|749|748|747|746|745|744|743|742|740|739|738|737|736|735|725|721|599|598|597|596|595|594|587|586|585|584|581|578|577|576|575|574|573|572|569|568|567|566|565|564|563|562|561|558|557|556|555|554|553|551|550|548|547|545|544|539|538|537|536|533|532|531|495|494|493|480|479|478|476|475|470|467|466|465|463|460|439|438|436|428|422|299|297|296|295|294|293|291|289|288|287|285|284|283|282|280|279|278|277|276|274|270|269|268|267|266|265|264|263|261|260|259|258|257|256|255|254|250|248|247|246|244|243|242|241|240|238|237|235|234|233|229|228|226|225|224|223|220|198|197|195|194|193|192|191|187|186|185|184|183|182|179|178|176|175|174|173|172|167|166|165|164|163|162|158|157|156|155|154|153|152|146|145|144|143|142|139|138|137|136|135|134|133|126|125|124|123)(\d{2})(\d{4})$/, "0$1-$2-$3");//固定電話市外3桁
	str = str.replace(/^0(99|98|97|96|95|93|92|89|88|87|86|84|83|82|79|78|77|76|75|73|72|59|58|55|54|53|52|49|48|47|46|45|44|43|42|29|28|27|26|25|24|23|22|19|18|17|15|11)(\d{3})(\d{4})$/, "0$1-$2-$3");//固定電話市外2桁
	str = str.replace(/^0(6|4|3)(\d{4})(\d{4})$/, "0$1-$2-$3");//固定電話市外1桁
	str = str.replace(/^0(120|800|570|990)(\d{2})(\d{4})$/, "0$1-$2-$3");//その他3桁
	str = str.replace(/^0(50|80|90|20|60)(\d{4})(\d{4})$/, "0$1-$2-$3");//その他2桁
	return str1 == str ? str0 : str;
}

var n1 = '09012345678'.cnvPhone();//090-1234-5678
var n2 = '0334567890'.cnvPhone('');//03-3456-7890
var n3 = '34567890'.cnvPhone('03');//03-3456-7890
	String.prototype.cnvPhone = function(defaultPrefix){
	var str0 = this, str1, str;
	str1 = str0.replace(/[^\d]/g, '');
	if (defaultPrefix && /^[^0]/.test(str1)) str1 = defaultPrefix+str1;//0以外で始まる場合、デフォルトの局番を追加
	str = str1;
	str = str.replace(/^0(9969\|9913\|9912\|9802\|9496\|8636\|8514\|8512\|8477\|8396\|8388\|8387\|7468\|5979\|5769\|4998\|4996\|4994\|4992\|1658\|1656\|1655\|1654\|1648\|1635\|1634\|1632\|1587\|1586\|1564\|1558\|1547\|1466\|1457\|1456\|1398\|1397\|1392\|1377\|1374\|1372\|1267)(\d)(\d{4})$/, "0$1-$2-$3");//固定電話市外4桁
	str = str.replace(/^0(997\|996\|995\|994\|993\|987\|986\|985\|984\|983\|982\|980\|979\|978\|977\|974\|973\|972\|969\|968\|967\|966\|965\|964\|959\|957\|956\|955\|954\|952\|950\|949\|948\|947\|946\|944\|943\|942\|940\|930\|920\|898\|897\|896\|895\|894\|893\|892\|889\|887\|885\|884\|883\|880\|879\|877\|875\|869\|868\|867\|866\|865\|863\|859\|858\|857\|856\|855\|854\|853\|852\|848\|847\|846\|845\|838\|837\|836\|835\|834\|833\|829\|827\|826\|824\|823\|820\|799\|798\|797\|796\|795\|794\|791\|790\|779\|778\|776\|774\|773\|772\|771\|770\|768\|767\|766\|765\|763\|761\|749\|748\|747\|746\|745\|744\|743\|742\|740\|739\|738\|737\|736\|735\|725\|721\|599\|598\|597\|596\|595\|594\|587\|586\|585\|584\|581\|578\|577\|576\|575\|574\|573\|572\|569\|568\|567\|566\|565\|564\|563\|562\|561\|558\|557\|556\|555\|554\|553\|551\|550\|548\|547\|545\|544\|539\|538\|537\|536\|533\|532\|531\|495\|494\|493\|480\|479\|478\|476\|475\|470\|467\|466\|465\|463\|460\|439\|438\|436\|428\|422\|299\|297\|296\|295\|294\|293\|291\|289\|288\|287\|285\|284\|283\|282\|280\|279\|278\|277\|276\|274\|270\|269\|268\|267\|266\|265\|264\|263\|261\|260\|259\|258\|257\|256\|255\|254\|250\|248\|247\|246\|244\|243\|242\|241\|240\|238\|237\|235\|234\|233\|229\|228\|226\|225\|224\|223\|220\|198\|197\|195\|194\|193\|192\|191\|187\|186\|185\|184\|183\|182\|179\|178\|176\|175\|174\|173\|172\|167\|166\|165\|164\|163\|162\|158\|157\|156\|155\|154\|153\|152\|146\|145\|144\|143\|142\|139\|138\|137\|136\|135\|134\|133\|126\|125\|124\|123)(\d{2})(\d{4})$/, "0$1-$2-$3");//固定電話市外3桁
	str = str.replace(/^0(99\|98\|97\|96\|95\|93\|92\|89\|88\|87\|86\|84\|83\|82\|79\|78\|77\|76\|75\|73\|72\|59\|58\|55\|54\|53\|52\|49\|48\|47\|46\|45\|44\|43\|42\|29\|28\|27\|26\|25\|24\|23\|22\|19\|18\|17\|15\|11)(\d{3})(\d{4})$/, "0$1-$2-$3");//固定電話市外2桁
	str = str.replace(/^0(6\|4\|3)(\d{4})(\d{4})$/, "0$1-$2-$3");//固定電話市外1桁
	str = str.replace(/^0(120\|800\|570\|990)(\d{2})(\d{4})$/, "0$1-$2-$3");//その他3桁
	str = str.replace(/^0(50\|80\|90\|20\|60)(\d{4})(\d{4})$/, "0$1-$2-$3");//その他2桁
	return str1 == str ? str0 : str;
	}

	var n1 = '09012345678'.cnvPhone();//090-1234-5678
	var n2 = '0334567890'.cnvPhone('');//03-3456-7890
	var n3 = '34567890'.cnvPhone('03');//03-3456-7890