1.千分位分割，手機號碼分割

//千分位分割組替換 var n = '1234321789.33',reg = /(\d{1,3})(?=(\d{3})+(?:\.|$))/g;n = n.replace(reg,'$1,'); console.log('n: ' + n);//千分位分割單詞邊界 var m = '1234321789.33',reg = /\B(?=(\d{3})+(?!\d))/g;m = m.replace(reg,','); console.log('m: ' + m)//手機號分割單詞邊界 var p = '18810808376',reg = /\B(?=(\d{4})+(?!\d))/g;p = p.replace(reg,' '); console.log('p: ' + p);

2.獲取url參數

function queryAll(){var src = location.search || location.hash,reg = /[?&]([^&]+)=([^&]+)/g,res = null,obj = {};while(res = reg.exec(src)){obj[res[1]] = decodeURIComponent(res[2].replace(/\+/g,' '));}return obj; }function queryOne(key){var src = location.search || location.hash,reg = new RegExp('[?&]'+key+'=([^&]+)'),match = reg.exec(src);return match == null ? null : decodeURIComponent(match[1].replace(/\+/g,' ')) ; }

3.replace的正則形式

//寫format方法function format(s){var args = arguments;return s.replace(/\{(\d+)\}/,function($0,$1){return args[($1 | 0) + 1] || '';}) }format("{0} love {1}.",'I','You') //I love you

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轉載于:https://www.cnblogs.com/mengff/p/8040512.html

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