在JSON中更新elemint将更新所有

本文介绍了在JSON中更新elemint将更新所有的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我解析了一个JSON对象，我试图向下导航至SHIPPINGCOMMENTS并更新它，但是当我这样做时，它将更新具有该名称的所有单元，而不只是一个名称.

I have a JSON object parsed and I am trying to navigate down to SHIPPINGCOMMENTS and update it, but when I do, it updates all cells with that name instead of just the one.

{ "id": 1402846607011, "status": "unsaved", "accounts": [ { "compid": 919759, "compname": null, "products": [ { "BCINUM": "539504", "ITEMUNIT": "EA", "ORDERDETAILS": [ { "SHIPDATEID": "69230", "SHIPPERIODID": "2096", "QUANTITY": "1" }, { "SHIPDATEID": "69231", "SHIPPERIODID": "2096", "QUANTITY": "2" } ], "SHIPPINGCOMMENTS": "sooner" } ] }, { "compid": 920001, "compname": null, "products": [ { "BCINUM": "539504", "ITEMUNIT": "EA", "ORDERDETAILS": [ { "SHIPDATEID": "69230", "SHIPPERIODID": "2096", "QUANTITY": "1" }, { "SHIPDATEID": "69231", "SHIPPERIODID": "2096", "QUANTITY": "2" } ], "POTEXT": "", "SHIPPINGCOMMENTS": "sooner" } ] } ] }

这是我要遍历的代码:

function updateComments(compID,bcinum,comment) { var accounts = runningOrders.accounts; var n = accounts.length; for (i = 0; i < n; i++) { if (accounts[i]pid == compID) { var p = accounts[i].products.length; for (ii = 0; ii < p; ii++) { if (accounts[i].products[ii].BCINUM == bcinum) { accounts[i].products[ii].SHIPPINGCOMMENTS = comment; } } } } }

函数调用为:

updateComments(919759,539504,sooner);

推荐答案

两个潜在问题:

在计算n时，您实际上不是在计算acconts数组的大小吗? (JSON)对象的名称是什么?

在示例函数调用中，您正在将两个对象中的名称更改为已经定义的名称.这是一个错误吗?

这段代码在node.js中对我有用:

This code is working for me in node.js:

function updateComments(compID,bcinum,comment) { var n = accounts.accounts.length; console.log(n); console.log(accounts['accounts'][0].products); console.log(accounts['accounts'][1].products); for (i = 0; i < n; i++) { console.log('testing ', i, accounts.accounts[i]pid) if (accounts.accounts[i]pid == compID) { var p = accounts.accounts[i].products.length; console.log('Found compid', i, compID); for (ii = 0; ii < p; ii++) { if (accounts.accounts[i].products[ii].BCINUM == bcinum) { console.log('Found bcinum', ii, bcinum) accounts.accounts[i].products[ii].SHIPPINGCOMMENTS = comment; } } } } console.log(accounts['accounts'][0].products); console.log(accounts['accounts'][1].products); } accounts = { "id": 1402846607011, "status": "unsaved", "accounts": [ { "compid": 919759, "compname": null, "products": [ { "BCINUM": "539504", "ITEMUNIT": "EA", "ORDERDETAILS": [ { "SHIPDATEID": "69230", "SHIPPERIODID": "2096", "QUANTITY": "1" }, { "SHIPDATEID": "69231", "SHIPPERIODID": "2096", "QUANTITY": "2" } ], "SHIPPINGCOMMENTS": "sooner" } ] }, { "compid": 920001, "compname": null, "products": [ { "BCINUM": "539504", "ITEMUNIT": "EA", "ORDERDETAILS": [ { "SHIPDATEID": "69230", "SHIPPERIODID": "2096", "QUANTITY": "1" }, { "SHIPDATEID": "69231", "SHIPPERIODID": "2096", "QUANTITY": "2" } ], "POTEXT": "", "SHIPPINGCOMMENTS": "sooner" } ] } ] }