Javascript 如何获取JSON表的总行数？
我只想问一下如何获取JSON表的当前行总数。我是JSON的新手，所以我希望有人能回答我的问题。谢谢..Javascript 如何获取JSON表的总行数？,javascript,html,json,Javascript,Html,Json,我只想问一下如何获取JSON表的当前行总数。我是JSON的新手，所以我希望有人能回答我的问题。谢谢.. <!DOCTYPE html> <html> <body> <h2>Create Object from JSON String</h2> <p id="demo"></p> <script> var text = '{"employees":[' + '{"firstName":"John"
<!DOCTYPE html>
<html>
<body>
<h2>Create Object from JSON String</h2>
<p id="demo"></p>
<script>
var text = '{"employees":[' +
'{"firstName":"John","lastName":"Doe" },' +
'{"firstName":"Anna","lastName":"Smith" },' +
'{"firstName":"Peter","lastName":"Jones" }]}';
obj = JSON.parse(text);
document.getElementById("demo").innerHTML =
obj.employees[0].firstName + " " + obj.employees[0].lastName;
</script>
</body>
</html>
从JSON字符串创建对象
var text='{“员工”：['+
“{”姓“：”约翰“，”姓“：”多伊“}，”+
“{”姓“：”安娜“，”姓“：”史密斯“}，”+
“{”姓“：”彼得“，”姓“：”琼斯“}]}”；
obj=JSON.parse（文本）；
document.getElementById（“demo”）.innerHTML=
obj.employees[0]。名字+“”+obj.employees[0]。姓氏；
从JSON字符串创建对象
var text='{“员工”：['+
“{”姓“：”约翰“，”姓“：”多伊“}，”+
“{”姓“：”安娜“，”姓“：”史密斯“}，”+
“{”姓“：”彼得“，”姓“：”琼斯“}]}”；
obj=JSON.parse（文本）；
document.getElementById（“demo”）.innerHTML=
obj.employees[0]。名字+“”+obj.employees[0]。姓氏；