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我有一个对象中的数据,我试图在表格中显示。不幸的是,我所有的栏目都显示undefined
。使用JSON的Javascript创建表格
var fifadata = [{
"fields": ["id", "country", "alternate_name", "fifa_code", "group_id", "group_letter", "wins", "draws", "losses", "games_played", "points", "goals_for", "goals_against", "goal_differential"]
}, {
"id": 1,
"country": "Brazil",
"alternate_name": null,
"fifa_code": "BRA",
"group_id": 1,
"group_letter": "A",
"wins": 4,
"draws": 1,
"losses": 2,
"games_played": 7,
"points": 13,
"goals_for": 11,
"goals_against": 14,
"goal_differential": -3
}, {
"id": 2,
"country": "Croatia",
"alternate_name": null,
"fifa_code": "CRO",
"group_id": 1,
"group_letter": "A",
"wins": 1,
"draws": 0,
"losses": 2,
"games_played": 3,
"points": 3,
"goals_for": 6,
"goals_against": 6,
"goal_differential": 0
}, {
"id": 3,
"country": "Mexico",
"alternate_name": null,
"fifa_code": "MEX",
"group_id": 1,
"group_letter": "A",
"wins": 2,
"draws": 1,
"losses": 1,
"games_played": 4,
"points": 7,
"goals_for": 5,
"goals_against": 3,
"goal_differential": 2
}];
var body = document.getElementsByTagName('body')[0];
var table = document.createElement("table");
var thead = document.createElement("thead");
var tbody = document.createElement("tbody");
var th = document.createElement("th");
var caption = document.createElement('caption');
var cap = document.createTextNode("Game Results List");
caption.appendChild(cap);
caption.style.fontWeight = "900";
table.appendChild(caption);
body.appendChild(table);
table.style.border = "1px dashed red";
table.style.borderSpacing = "1px";
table.style.textAlign = "center";
//table head(correct)
for (i = 0; i < 1; i++) {
var tr = document.createElement("tr");
thead.appendChild(tr);
table.appendChild(thead);
for (j = 0; j < fifadata[0].fields.length; j++) {
var th = document.createElement("th");
var keyname = fifadata[0].fields[j];
var tm = document.createTextNode(keyname);
th.appendChild(tm);
tr.appendChild(th);
th.style.border = "1px dashed blue";
th.style.padding = "5px";
}
}
//table body(incorrect).
//I need to use a dynamically created property(i.e. keyinfo) in "var text"
//i.e.fifadata[i].keyinfo; should change into fifadata[1].ID when it is
//excecuted.
for (i = 1; i < fifadata.length; i++) {
var tr = document.createElement("tr");
tbody.appendChild(tr);
table.appendChild(tbody);
for (j = 0; j < fifadata[0].fields.length; j++) {
var td = document.createElement("td");
var keyinfo = fifadata[0].fields[j];
var test = fifadata[i].keyinfo;
var tn = document.createTextNode(test);
td.appendChild(tn);
tr.appendChild(td);
td.style.border = "1px dashed green";
td.style.padding = "2px";
}
}
如果一切顺利的话,应该从JSON数据创建一个表。我的代码可以稍微修改一下吗?为什么要做这件事更容易?
我需要这个工作只使用JavaScript和jQuery的不能在 – Revanth 2014-09-26 16:41:46
所有的代码,你有一个简单的问题。 ''var test = fifadata [i] .keyinfo;'应该是'var test = fifadata [i] [keyinfo];'如果您将代码示例缩减到给您带来麻烦的特定部分,这会很有帮助。通过解释它显示“未定义”,你几乎可以确定问题,因此如果人们不必深入该代码以获取指定所需文本的部分,将会很有帮助。 – 2014-09-26 16:47:13
谢谢。将为未来的问题提供建议 – Revanth 2014-09-26 16:49:21