網頁Web-Javascript-處理物件{ }、陣列[ ] (JSON資料)
1.建立物件{ }、陣列 [ ]
2.讀取(JSON)物件、陣列
3.實作
- 建立json檔:10筆學生資料，欄位:姓、名
- 讀取json檔讀資料，填入表格中 (使用for迴圈)
- 編號 |姓 | 名
4.JSON 資料是字串，讀出並寫入表格
1.建立物件{ }、陣列 [ ]
{
"student": [
{
"firstName": "May",
"lastName": "Jenny"
},
{
"firstName": "Dev",
"lastName": "hen"
},
{
"firstName": "Tiffy",
"lastName": "rosy"
}
]
}
<html>
<body>
<p id="box0"></p>
<script>
mydata = {"student":[{"firstName":"May","lastName":"Jenny" },{"firstName":"Dev","lastName":"hen"},{"firstName":"Tiffy","lastName":"rosy" }]};
console.log("目前是JSON"+mydata);
document.getElementById("box0").innerHTML =mydata ;
</script>
</body>
</html>
https://codepen.io/yiruatstudio/pen/JjKBvKE
2.讀取(JSON)物件、陣列
<html>
<body>
<p id="box0"></p>
<p id="box1"></p>
<p id="box2"></p>
<p id="box3"></p>
<p id="box4"></p>
<p id="box5"></p>
<script>
mydata = {"student":[{"firstName":"May","lastName":"Jenny" },{"firstName":"Dev","lastName":"hen"},{"firstName":"Tiffy","lastName":"rosy" }]};
console.log("目前是JSON"+mydata);
document.getElementById("box0").innerHTML =mydata.student[1].firstName ;
document.getElementById("box1").innerHTML =mydata.student[1].lastName ;
document.getElementById("box2").innerHTML =mydata["student"][2]["firstName"] ;
document.getElementById("box3").innerHTML =mydata["student"][2]["lastName"] ;
document.getElementById("box4").innerHTML =mydata.student[0]["firstName"] ;
document.getElementById("box5").innerHTML =mydata.student[0]["lastName"] ;
</script>
</body>
</html>
https://codepen.io/yiruatstudio/pen/ExyOjew
3.實作
建立json檔:10筆學生資料，欄位:姓、名
讀取json檔讀資料，填入表格中 (使用for迴圈)
編號 |姓 | 名 |姓&名|年紀|手機
<html>
<body>
資料:
{
"student":
[
{
"firstName":"May",
"lastName":"Jenny" ,
"age":"23",
"phone":"0912212445"
},
{
"firstName":"Dev",
"lastName":"hen",
"age":"24",
"phone":"0912212445"
},
{
"firstName":"Tiffy",
"lastName":"rosy",
"age":"26",
"phone":"0912212445"
},
{
"firstName":"PMay",
"lastName":"PJenny" ,
"age":"27",
"phone":"0912212445"
},
{
"firstName":"QDev",
"lastName":"Qhen",
"age":"26",
"phone":"0912212445"
},
{
"firstName":"VTiffy",
"lastName":"Vrosy",
"age":"25",
"phone":"0912212445"
},
{
"firstName":"MMay",
"lastName":"MJenny" ,
"age":"22",
"phone":"0912212445"
},
{
"firstName":"HDev",
"lastName":"Hhen",
"age":"21",
"phone":"0912212445"
},
{
"firstName":"JKTiffy",
"lastName":"Krosy",
"age":"23",
"phone":"0912212445"
},
{
"firstName":"MKTiffy",
"lastName":"PProsy",
"age":"23",
"phone":"0912212445"
}
]
}
<p id="mytable"></p>
<script>
mydata = {
"student":
[
{
"firstName":"May",
"lastName":"Jenny" ,
"age":"23",
"phone":"0912212445"
},
{
"firstName":"Dev",
"lastName":"hen",
"age":"24",
"phone":"0912212445"
},
{
"firstName":"Tiffy",
"lastName":"rosy",
"age":"26",
"phone":"0912212445"
},
{
"firstName":"PMay",
"lastName":"PJenny" ,
"age":"27",
"phone":"0912212445"
},
{
"firstName":"QDev",
"lastName":"Qhen",
"age":"26",
"phone":"0912212445"
},
{
"firstName":"VTiffy",
"lastName":"Vrosy",
"age":"25",
"phone":"0912212445"
},
{
"firstName":"MMay",
"lastName":"MJenny" ,
"age":"22",
"phone":"0912212445"
},
{
"firstName":"HDev",
"lastName":"Hhen",
"age":"21",
"phone":"0912212445"
},
{
"firstName":"JKTiffy",
"lastName":"Krosy",
"age":"23",
"phone":"0912212445"
},
{
"firstName":"QQTiffy",
"lastName":"QQrosy",
"age":"20",
"phone":"0912232445"
},
]
};
mLen=mydata["student"].length;
console.log(mLen);
text = "<table border='1'><tr><td>編號</td><td>姓</td><td>名</td><td>姓&名</td><td>年紀</td><td>手機</td></tr>";
for (i=0;i<mLen;i++){
console.log(mydata.student[i].firstName);
text += "<tr>"+
"<td>"+(i+1)+"</td>"+
"<td>"+mydata.student[i].firstName+"</td>"+
"<td>"+mydata.student[i].lastName+"</td>"+
"<td>"+mydata.student[i].firstName+"&"+mydata.student[i].lastName+"</td>"+
"<td>"+mydata.student[i].age+"</td>"+
"<td>"+mydata.student[i].phone+"</td>"+
"</tr>";
}
text += "</table>";
document.getElementById("mytable").innerHTML =text;
</script>
</body>
</html>https://codepen.io/yiruatstudio/pen/eYzQpZe
4.JSON 資料是字串，讀出並寫入表格
<html>
<body>
<p id="demo"></p>
<p id="demo2"></p>
<script>
var text = '{"student":[' +
'{"firstName":"May","lastName":"Jenny" },' +
'{"firstName":"Dev","lastName":"hen" },' +
'{"firstName":"Tiffy","lastName":"rosy" }]}';
console.log("目前是字串"+text);
obj = JSON.parse(text);
console.log("物件"+obj);
mLen = obj.student.length; //讀取student有幾筆
mhtml = "<table border=1>"+
"<tr>"+
"<td>編號</td>"+
"<td colspan=3>學生表</td>"+
"</tr>"+
"<tr><td>1</td><td>姓</td><td>名</td><td>姓 名</td></tr>"+
"<tr><td>2</td><td>"+obj.student[0].firstName+"</td><td>"+obj.student[0].lastName+"</td><td>"+obj.student[0].firstName +obj.student[0].lastName+"</td></tr>"+
"<tr><td>3</td><td>"+obj.student[1].firstName+"</td><td>"+obj.student[1].lastName+"</td><td>"+obj.student[1].firstName +obj.student[1].lastName+"</td></tr>"+
"<tr><td>4</td><td>"+obj.student[2].firstName+"</td><td>"+obj.student[2].lastName+"</td><td>"+obj.student[2].firstName +obj.student[2].lastName+"</td></tr>"+
"</table>";
document.getElementById("demo").innerHTML =
mhtml;
</script>
</body>
</html>https://codepen.io/yiruatstudio/pen/gOMQadr
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