比较元素

Question

for (index=1; index<=15; index++) {
    if (undefined != sku[index]) {

        found = jQuery.inArray(sku[index], mr_sku); 
        if( found == -1){ //not in array
            alert( sku[index] + " NOT FOUND - delete index " + index );
        } else { // in array
                  alert("FOUND");
        }

  }

}

两个数组--sku和mr_sku =试图找到1到15之间的值，其中未定义值在两个数组中。我知道sku [1]和mr_sku是相同的值 - 只是在数组中显示为bieng - inarray总是以-1返回

Answer 1

使用虚拟数据进行测试，它运行正常。这是jsfiddle，这是我使用的数据：

var sku = ['a','b','c'];
var mr_sku = ['a','c','c'];

for (index=1; index<=2; index++) {
    if (undefined != sku[index]) {

        found = jQuery.inArray(sku[index], mr_sku); 
        if( found == -1){ //not in array
            alert( sku[index] + " NOT FOUND - delete index " + index );
        } else { // in array
                  alert("FOUND");
        }

  }
}​