javascript 向 JSON 添加一行
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Adding a row to JSON
提问by Jason Wells
I want to add a new row to my JSON when the user clicks a link. Here's my javascript: It's not erroring, but I am not getting updated JSON in my alert.
当用户单击链接时，我想在我的 JSON 中添加一个新行。这是我的 javascript：它没有出错，但我的警报中没有更新 JSON。
$(document).ready( function(){
people = {
"COLUMNS":["NAME","AGE"],
"DATA":[
["Jon","16"],
["Jerry","23"]
]
}
members = people.DATA;
var nc = "<table border=1 width=500><tr><td>name</td><td>age</td><td></td></tr>";
for(var i=0;i<members.length;i++)
{
nc+= '<tr><td>' + members[i][0] + '</td>';
nc+= '<td>' + members[i][1] + '</td>';
nc+= '<td><a href="" class="addlink">add a new person</a></td></tr>';
}
nc += "</table>";
$("#result").html(nc);
$(".addlink").click( function(){
// add another row to our JSON
people.DATA['NAME'] = "new";
people.DATA['AGE'] = "99";
alert(people.DATA);
return false;
});
});
回答by Guffa
That's not JSON, it's a Javascript object.
那不是 JSON，它是一个 Javascript 对象。
To add another item in the array, you create an array and add to it, as it is an array of arrays:
要在数组中添加另一个项目，请创建一个数组并将其添加到其中，因为它是一个数组数组：
people.DATA.push(["new", "99"]);
