Converting a String to Json Object
How Do You Make Js Think That a String Is Json? I Have a Function Which Only Works If Json Object Is Passed to It. If I Pass a String to It, with Same Format...
How do you make JS think that a string is JSON ?
I have a function which only works if JSON object is passed to it. If I pass a string to it, with same format as JSON, it doesn't work. So I want to make that function think that the string passed to it is a JSON. The string is indeed in the JSON format.
I also tried the following. I inputted the string through Ajax , with "handle as" parameter as "JSON", and then when I passed the result to the function it works.
So I deduced the problem is not with the string. How do I convert this string to JSON? If i get same string through ajax request and then passing it to function works, whereas directly passing it doesn't work.
The string is as follows:
{
"data": [
{
"id": "id1",
"fields": [
{
"id": "name1",
"label": "joker",
"unit": "year"
},
{"id": "name2", "label": "Quantity"},
],
"rows": [ data here....
and closing braces..
9 Answers
var obj = JSON.parse(string);
Where string is your json string.
You can use the JSON.parse() for that.
Example:
var myObj = JSON.parse('{"p": 5}');
console.log(myObj);
var obj = jQuery.parseJSON('{"name":"John"}');
alert( obj.name === "John" );
link:-
I had the same problem with a similar string like yours
{id:1,field1:"someField"},{id:2,field1:"someOtherField"}
The problem here is the structure of the string. The json parser wasn't recognizing that it needs to create 2 objects in this case. So what I did is kind of silly, I just re-structured my string and added the [] with this the parser recognized
var myString = {id:1,field1:"someField"},{id:2,field1:"someOtherField"}
myString = '[' + myString +']'
var json = $.parseJSON(myString)
Hope it helps,
If anyone has a more elegant approach please share.
Simply use eval function.
var myJson = eval(theJsibStr);
convert the string to HashMap using Object Mapper ...
new ObjectMapper().readValue(string, Map.class);
Internally Map will behave as JSON Object
var Data=[{"id": "name2", "label": "Quantity"}]
Pass the string variable into Json parse :
Objdata= Json.parse(Data);
Let's us consider you have string like
example : "name:lucy,age:21,gender:female"
function getJsonData(query){
let arrayOfKeyValues = query.split(',');
let modifiedArray = new Array();
console.log(arrayOfKeyValues);
for(let i=0;i< arrayOfKeyValues.length;i++){
let arrayValues = arrayOfKeyValues[i].split(':');
let arrayString ='"'+arrayValues[0]+'"'+':'+'"'+arrayValues[1]+'"';
modifiedArray.push(arrayString);
}
let jsonDataString = '{'+modifiedArray.toString()+'}';
let jsonData = JSON.parse(jsonDataString);
console.log(jsonData);
console.log(typeof jsonData);
return jsonData;
}
let query = "name:lucy,age:21,gender:female";
let response = getJsonData(query);
console.log(response);`
JSON.parse() function will do.
or
Using Jquery,
var obj = jQuery.parseJSON( '{ "name": "Vinod" }' );
alert( obj.name === "Vinod" );
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