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javascript 不同型態比較不相等

2020-07-07 @ 20:46 in PHP, JavaScript, Sql

在取部份字串時, 用 substr 取是 String  ,match 取是 Object ,直接 if(substr == match) 傳回 False 必須改字串才能比較,如下:

        var str = 'c002';
        mstr = str.match(/\d+/).toString();
        sstr = str.substr( 1 , 3 ).toString();
        alert(mstr + " = " + typeof(mstr) + "\n" + sstr + " = " + typeof(sstr));

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作者 dasporno @ 21:01, 2024-11-27

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