如果我有这样的嵌套数组:
"localValues" : [
{
"localValId" : "e3rQACssGkfp9zsue",
"localProductCode" : "271102502",
"localMembersPrice" : 7814.090000000001,
"localProductDescription" : "11R225 146/143L H DUN SP384 FM TL",
"fetPr" : "29.39",
"invPrice" : "353.85"
},
{
"localValId" : "NxtmZngRpGY56grkW",
"localProductCode" : "290132910",
"localMembersPrice" : "300",
"localProductDescription" : "215/70R16 99S DUN GRNDTRK ST20 BSWTL",
"fetPr" : "",
"invPrice" : "136.72"
},
{
"localValId" : "WXLiCMJMixndtQtqZ",
"localProductCode" : "271102502",
"localMembersPrice" : "444",
"localProductDescription" : "11R225 146/143L H DUN SP384 FM TL",
"fetPr" : "29.39",
"invPrice" : "353.85"
}];
有没有办法可以检查localValues数组中是否已存在新的localProductCode
?
谢谢。
答案 0 :(得分:5)
你可以尝试:
function isExisted(localValues, localProductCode) {
for (var i = 0; i < localValues.length; ++i) {
if (localValues[i].localProductCode == localProductCode) {
return true;
}
}
return false;
}
答案 1 :(得分:0)
这是一种查找巧合指数的方法(如 indexOf )
Array.prototype.indexOfObj = function(key, value){
for(var i = 0; i < this.length;)
if(this[i++][key] === value) return --i
return -1
}
Items.localValues.indexOfObj("localValId", "NxtmZngRpGY56grkW"); //1
Items.localValues.indexOfObj("localValId", "WXLiCMJMixndtQtqZ"); //2
<强> Demo 强>