摘要：JavaScript中instanceof对于不同的构造器可能都返回true我们知道 instanceof 运算符用来检查对象是否为某构造器的实例。下面列举它返回true的各种情景。1、对象obj是通过new Constructor创建的，那么 obj instanceof Constructor 为true?123456function Person(n, a) { this.name = n; this.age = a;}var p = new Person('John Backus', 82);console.log(p instanceof Person); // tr 阅读全文

摘要：<script>jQuery("#grid_id").jqGrid({... colModel: [ ... {name:'price', index:'price', width:60, align:"center", editable: true, formatter:currencyFmatter}, ... ]...});function currencyFmatter (cellvalue, options, rowObject){ // do something here return new_fo 阅读全文