jquery $.each() 对象
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jquery $.each() for objects
提问by matiasdelgado
<script>
$(document).ready(function() {
var data = { "programs": [ { "name":"zonealarm", "price":"500" }, { "name":"kaspersky", "price":"200" } ] };
$.each(data.programs[0], function(key,val) {
alert(key+val);
});
});
</script>
This code retrieves the first data. name:zonealarmand price:500.
此代码检索第一个数据。name:zonealarm和price:500。
How can I retrieve all the data in the object?
如何检索对象中的所有数据？
I tried $.each(data.programs, function(key,val)but it didn't work.
我试过了，$.each(data.programs, function(key,val)但没有用。
Should I put it in a loop?
我应该把它放在一个循环中吗？
回答by Tomalak
$.each()works for objects and arrays both:
$.each()适用于对象和数组：
var data = { "programs": [ { "name":"zonealarm", "price":"500" }, { "name":"kaspersky", "price":"200" } ] };
$.each(data.programs, function (i) {
$.each(data.programs[i], function (key, val) {
alert(key + val);
});
});
...and since you will get the current array element as second argument:
...并且由于您将获得当前数组元素作为第二个参数：
$.each(data.programs, function (i, currProgram) {
$.each(currProgram, function (key, val) {
alert(key + val);
});
});
回答by Chandu
You are indeed passing the first data item to the each function.
您确实将第一个数据项传递给 each 函数。
Pass data.programs to the each function instead. Change the code to as below:
将 data.programs 传递给 each 函数。将代码更改为如下：
<script>
$(document).ready(function() {
var data = { "programs": [ { "name":"zonealarm", "price":"500" }, { "name":"kaspersky", "price":"200" } ] };
$.each(data.programs, function(key,val) {
alert(key+val);
});
});
</script>
回答by Morgan ARR Allen
Basically you need to do two loops here. The one you are doing already is iterating each element in the 0th array element.
基本上你需要在这里做两个循环。您已经在做的是迭代第 0 个数组元素中的每个元素。
You have programs: [ {...}, {...} ] so programs[0] is { "name":"zonealarm", "price":"500" } So your loop is just going over that.
你有程序：[ {...}, {...} ] 所以程序 [0] 是 { "name":"zonealarm", "price":"500" } 所以你的循环只是在过去。
You could do an outer loop over the array
你可以在数组上做一个外循环
$.each(data.programs, function(index) {
// then loop over the object elements
$.each(data.programs[index], function(key, value) {
console.log(key + ": " + value);
}
}
