get value from javascript object
when alerting a variable in javascript it shows like this.. totally 9 values(name, address, cit开发者_开发百科y, friend etc)
how to retrive the values
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
That looks like array of Objects, you need to loop to access each
for(var x in thatObjectArray){
doSomethingOn(thatObjectArray[x].name);
doSomethingOn(thatObjectArray[x].address);
...
}
or to test, you could do like alert(thatObjectArray[0].name)
JSON.stringify() and .toSource() are convenient for viewing [object Object].
ref: Implementing Mozilla's toSource() method in Internet Explorer
javascript:
objRA=[
{name:"Fred",city:"N.Y",friend:"Mike"},
{name:"Dave",city:"S.F",friend:"Mike"},
{name:"Dave",city:"S.F",friend:"Fred"},
{name:"Mary",city:"S.F",friend:"Fred"},
{name:"Mary",city:"S.F",friend:"Dave"},
{name:"Dave",city:"S.F",friend:"Mary"},
{name:"Fred",city:"N.Y",friend:"Mary"},
];
alert(JSON.stringify(objRA));
displays
[{"name":"Fred","city":"N.Y","friend":"Mike"},
{"name":"Dave","city":"S.F","friend":"Mike"},
{"name":"Dave","city":"S.F","friend":"Fred"},
{"name":"Mary","city":"S.F","friend":"Fred"},
{"name":"Mary","city":"S.F","friend":"Dave"},
{"name":"Dave","city":"S.F","friend":"Mary"},
{"name":"Fred","city":"N.Y","friend":"Mary"}]
BUT, if ...
javascript:
objRA=[
{name:"Mike"},
{name:"Fred",city:"N.Y",friend: "?" },
{name:"Dave",city:"S.F",friend: "?" },
{name:"Dave",city:"S.F",friend: "?" },
{name:"Mary",city:"S.F"},
{name:"Mary",city:"S.F",friend: "?" },
{name:"Dave",city:"S.F",friend: "?" },
{name:"Fred",city:"N.Y"},
];
objRA[1].friend=objRA[0];
objRA[2].friend=objRA[0];
objRA[3].friend=objRA[1];
objRA[4].friend=objRA[1];
objRA[5].friend=objRA[2];
objRA[6].friend=objRA[4];
objRA[7].friend=objRA[4];
alert(objRA.toSource().split("},").join("},\n"));
then only .toSource() can display (with a little manual persuasion):
[#1={name:"Mike"}, #2={name:"Fred", city:"N.Y", friend:#1#}, #3={name:"Dave", city:"S.F", friend:#1#}, {name:"Dave", city:"S.F", friend:#2#}, #4={name:"Mary", city:"S.F", friend:#2#}, {name:"Mary", city:"S.F", friend:#3#}, {name:"Dave", city:"S.F", friend:#4#}, {name:"Fred", city:"N.Y", friend:#4#}]
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