I have php array as bellow
$php_arr = json_encode(array('1'=>'"data1', '1'=>'data2'));
that json object i try to access inside Extjs as bellow
var test = Ext.JSON.decode()(<?php echo $php_arr; ?>);
but that gave to me error as
Uncaught Ext.JSON.decode(): You're trying to decode an invalid JSON String:
because of JSON object break "data1
How can I get this JSON object decoded in ExtJs without lose "?
Try this
var test = Ext.JSON.decode(<?php echo $php_arr; ?>);
and you must escape " like so
$php_arr = json_encode(array('1'=>'\"data1', '2'=>'data2'));
Also in PHP you can use addslashes, like so
$php_arr = json_encode(array('1'=>'"data1', '2'=>'data2'));
$php_arr = addslashes($php_arr);
Related
I have javascript variable var result as following which has java variable that have JSON data like this
var result = <%=JsonData1%> ;
alert(result.toSource());
Above code similar to this code as showing on alert message
var result= [{"year":"12","value":"6694"},{"year":"13","value":"50"},{"year":"08","value":"4776"},{"year":"09","value":"29006"},{"year":"10","value":"1751"}];
but I need to place a single quote on JSON data
'[{"year":"12","value":"6694"},{"year":"13","value":"50"},{"year":"08","value":"4776"},{"year":"09","value":"29006"},{"year":"10","value":"1751"}]'
and place it in new javascript variable like this
var json_pre = result;
alert(json_pre);
but when I change my result data that placed in new json_pre variable as in this link How to add single quote in the variable in Javascript?
var json_pre = "'" +result+ "'";
alert(json_pre.toSource());
then json data shows me like this on the alert message
'[{year:(new Date(-2208058200000)), value:6694}, {year:(new Date(-2207971800000)), value:50}, {year:(new Date(-2208403800000)), value:4776}, {year:(new Date(-2208317400000)), value:29006}, {year:(new Date(-2208231000000)), value:1751}]'
As I have tried every method that given me on that link.So anyone can help me in this?
result is not JSON, but a JavaScript object.
What you need to do is to stringify your object to JSON and then add the quotes:
var result = [{"year":"12","value":"6694"},{"year":"13","value":"50"},{"year":"08","value":"4776"},{"year":"09","value":"29006"},{"year":"10","value":"1751"}];
var result_pre = "'" + JSON.stringify(result) + "'";
console.log(result_pre);
But it is questionable why you would even need that.
You need to understand the single quotes does not make an object a string. When you are trying to store it in a variable I guess you are making the same mistake again.
when you do this
a={"key":"value"}
b="'" + a + "'";
You get a string representation for consoles, if you want a JSON string to be stored in a variable you need to do this
var json = JSON.stringify(result);
alert(json);
You don't need quotes for that.
I try to save wysiwyg data to a variable but I keep getting a error message
"Uncaught SyntaxError: Unexpected token ILLEGAL"
And I cant get my head around it... I can se in the console that everything
is retrieved ok, anyone with an idea of what could be the error.
javascript
var temp = "<?php echo $pressDescription ?>"
console
You have to escape characters which have special meaning or are not allowed in JavaScript string literals (such as new lines).
The json_encode function will do that for you.
var temp = <?php echo json_encode($pressDescription); ?>;
Just use escape characters. For example:
var varName1 = '<p class="className">Sample text</p>';
var varName2 = '<p class=\'className\'>Sample text</p>';
var varName3 = "<p class=\"className\">Sample text</p>";
I want to put a JSON object into a javascript variable as a sting in order to create a graph.
qm.createGraphData = function() {
$.post("ajax_getGraphDataWebsite ", function(json) {
qm.negativesData = json;
},"json");
qm.data = [{
"xScale":"ordinal",
"comp":[],
"main":[{
"className":".main.l1",
qm.negativesData},{
"className":".main.l2",
qm.negativesData}],
"type":"line-dotted",
"yScale":"linear"}];
}
the string value should be added to the "data" section. Now the object get's added but I need to add the string value to the variable like the sample below:
{"data":[{"x":"3283581","y":"2013-10-16"},{"x":"1512116","y":"2013-10-17"},{"x":"3967","y":"2013-10-18"},{"x":"1094","y":"2013-10-19"},{"x":"853","y":"2013-10-20"},{"x":"1205","y":"2013-10-21"},{"x":"2618700","y":"2013-10-22"},{"x":"3928291","y":"2013-10-23"},{"x":"3670318","y":"2013-10-24"},{"x":"3347369","y":"2013-10-25"},{"x":"2525573","y":"2013-10-26"},{"x":"3224612","y":"2013-10-27"},{"x":"3992964","y":"2013-10-28"},{"x":"3949904","y":"2013-10-29"},{"x":"3568618","y":"2013-10-30"},{"x":"3104696","y":"2013-10-31"},{"x":"3246932","y":"2013-11-01"},{"x":"2817758","y":"2013-11-02"},{"x":"3198856","y":"2013-11-03"},{"x":"3952957","y":"2013-11-04"},{"x":"3934173","y":"2013-11-05"},{"x":"3878718","y":"2013-11-06"},{"x":"3642822","y":"2013-11-07"},{"x":"3186096","y":"2013-11-08"}]}
This would generate the right graph for me. Does anyone know how to convert the json object into a string like above and to send it to the qm.negativesData variable?
// UPDATE
Now I've got the string with the qm.negativesData = JSON.stringify(json); solution
But my qm.negativesdata won't get added to the qm.data variable... i'm getting a console error SyntaxError: invalid property id
I suppose i'm not adding them the right way?
To convert a JSON object into a JSON string, you can try myObject.stringify(), JSON.stringify(myObject), or if you are using a library using the built in function of that library.
So, you could do something like: qm.negativesData = myObject.stringify()
Cheers
I have a string:
a = "{u'a':[u'123',u'321'], u'b':[u'456',u'654']}"
I want to convert this a to a json data.
How to do it?
I have tried JSON.parse(), but it will raise an error.
SyntaxError: Unexpected token u
That looks like Python literal syntax to me. Tell whoever wrote the Python portion to encode as JSON instead of just outputting the structure as a string.
In this particular case, you can just replace each u'x' with "x" and you'll have valid JSON:
var a = "{u'a':[u'123',u'321'], u'b':[u'456',u'654']}";
// Convert to JSON (May not work with other inputs!)
var json = a.replace(/u'((?:[^'\\]|\\.)*)'/g, function(a,str){
return '"' + str.replace(/\\'/g, '\'').replace(/"/g, '\\"') + '"';
});
// Parse the JSON into a Javascript object
var obj = JSON.parse(json);
Updated to work with some quotes in the object:
var a = "{u'a':[u'\\'123\\'',u'321'], u'b':[u'456\\\\',u'\"654\"']}";
Becomes:
{a:["'123'","321"], b:["456\",""654""]}
You need to change your input string to a valid JSON string.
I think this is what you wanted:
JSON.parse('{"a":["123","321"], "b":["456","654"]}')
The variables (keys / values ) are strings so need to be in quotes in order to be parsed as valid JSON.
// put quotes around the key / value pairs.
var a = "{\"u'a'\":[\"u'123'\",\"u'321'\"], \"u'b'\":[\"u'456'\",\"u'654'\"]}";
jQuery
a = $.parseJSON(a);
JSON is supposed to contain only strings.
a = "{u'a':[u'123',u'321'], u'b':[u'456',u'654']}"
Here I can only assume that u is a variable. Change it to this:
a = "{"+u+"'a':["+u+"'123',"+u+"'321'], "+u+"'b':["+u+"'456',"+u+"'654']}"
I am encoding some model data into a html element like this:
#Html.Raw(Json.Encode(Model));
The json string returned looks like this:
{"TestList":[{"FrequencyType":"1X","GCDs":"585.6","Identifier":"6144","SeqNo":9306,"SeqNoSpecified":true,"TSeqNo":8314,"TSeqNoSpecified":true,"TestDescr":"HBsAg"},{"FrequencyType":"1X","GCDs":"585.6","Identifier":"6124","SeqNo":9295,"SeqNoSpecified":true,"TSeqNo":8315,"TSeqNoSpecified":true,"TestDescr":"HCV Ab"},{"FrequencyType":"1X","GCDs":"585.3","Identifier":"6","SeqNo":9729,"SeqNoSpecified":true,"TSeqNo":8309,"TSeqNoSpecified":true,"TestDescr":"HD Monthly LS"}],"Frequency":[{"Key":"ANNUAL","Value":"Annually"},{"Key":"BIMONTH","Value":"Bi-Monthly"},{"Key":"BIWEEK","Value":"Bi-Weekly"},{"Key":"MON","Value":"Monthly"},{"Key":"1X","Value":"One Time"},{"Key":"QTR","Value":"Quarterly"},{"Key":"SMAN","Value":"Semi-Annual"},{"Key":"WEEK","Value":"Weekly"}]};
When I try to parse this using JSON.parse, I get an error:
arrayTestList = [];
var jsonTestList = $('#TestList').text();
jsonTestList = JSON.stringify(jsonTestList);
arrayTestList = JSON.parse(jsonTestList);
alert(arrayTestList.TestList[0]); // <===== this line is failing
Unable to get value of the property '0': object is null or undefined
How do I convert this jsonTestList string into a javascript array so that I can access elements of arrayTestList properly?
Edit:
Sorry, I forgot to mention my edit. Basically above javascript code is inside a Partial View 2. The code where I am json encoding the model is in another Partial View 1. From P V 2, I cannot access the model object of P V 1, so I am just dumping the contents into a div tag, so that I can access this list TestList element.
Try removing this line:
jsonTestList = JSON.stringify(jsonTestList);
jsonTestList is already a JSON string
The issue is now resolved.
I was getting an invalid character, but couldn't immediately recognize which character it was that was causing the problem. I found that my JSON string isn't valid because of the trailing semicolon that was output by the Json.Encode method. I validated the JSON string # http://jsonlint.com.
Once I removed that semicolon, the json string is populated as a JavaScript array into arrayTestList object.
Now just this works, as mentioned in both the answers above, JSON.stringify is not needed.
var arrayTestList = [];
var jsonTestList = $('#TestList').text().replace(";","");
arrayTestList = JSON.parse(jsonTestList);
alert(arrayTestList.TestList[0]);
Why are you using Json.Encode? Also in your code, why are you writing redundant code first you are using JSON.stringify and the JSON.parse same object.
jsonTestList = JSON.stringify(jsonTestList);
arrayTestList = JSON.parse(jsonTestList);
As per my understanding just Html.Raw will work
In JavaScript
var jsonObject = #Html.Raw(Model.TestList); //Here you will get JavaScript Object
var jsonTestList = jsonObject.TestList;