In JS :
I have this string ="[36.79025,3.01642],[36.71477,2.99761]";
I want it to be turned To a real Array =[[36.79025,3.01642],[36.71477,2.99761]];
Is this possible?
var string = "[36.79025,3.01642],[36.71477,2.99761]";
var arr = JSON.parse(`[${string}]`);
console.log(arr);
[[36.79025,3.01642],[36.71477,2.99761]]
My array look like this after use this code -:
var array=xmlhttrequest.responseText;
console.log(array);
["{\"result\":{\"isvalid\":true,\"address\":\"3EL5SKSjEzFQDBmXA5JFbsZu48vKnNSdDH\",\"scriptPubKey\":\"a9148aa3d53255b44655f82d163f37ecb68057f2edf487\",\"ismine\":false,\"iswatchonly\":false,\"isscript\":true},\"error\":null,\"id\":\"curltest\"}\n"]
I want value of isvalid , how can i get this .
That's a strange response. It's a stringified array, and that array contains a single item, which is another stringified object. Here's one option:
const responseText = String.raw`["{\"result\":{\"isvalid\":true,\"address\":\"3EL5SKSjEzFQDBmXA5JFbsZu48vKnNSdDH\",\"scriptPubKey\":\"a9148aa3d53255b44655f82d163f37ecb68057f2edf487\",\"ismine\":false,\"iswatchonly\":false,\"isscript\":true},\"error\":null,\"id\":\"curltest\"}\n"]`;
const [ stringItem ] = JSON.parse(responseText);
const itemObj = JSON.parse(stringItem);
const isvalid = itemObj.result.isvalid;
console.log(isvalid);
Note: While testing like this, you have to use String.raw so that the single backslashes are interpreted as literal backslashes and not unnecessary escape characters
The whole thing is an array as you can see it is wrapped inside [ ]. The inner content is a string, so you need to JSON.parse to convert into an object. Here is how you will get it JSON.parse(myData[0]).result.isvalid
var myData = ["{\"result\":{\"isvalid\":true,\"address\":\"3EL5SKSjEzFQDBmXA5JFbsZu48vKnNSdDH\",\"scriptPubKey\":\"a9148aa3d53255b44655f82d163f37ecb68057f2edf487\",\"ismine\":false,\"iswatchonly\":false,\"isscript\":true},\"error\":null,\"id\":\"curltest\"}\n"];
console.log("Is Valid: "+JSON.parse(myData[0]).result.isvalid);
use JSON.parse:
var obj = JSON.parse(array);
but I would try and eliminate all the unnecessary chars before using string.replace:
var json = array.replace("\", "");
I have a json string
["https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"]
I need to get at the data only and I want to extract the string to get the following :
https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg
I have tried to use JSON.parse but this does not seem to work
Any help woul dbe appreciated
[] represents an array on JSON. {} represents an Object.
So in order to fetch the first element from you json string, you have to parse the string as a JSON element ;
var arr = JSON.parse('["https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"]');
OR when you HAVE a json array already;
var arr = ["https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"];
Then, go on and fetch the first value from your array which has index 0 as in all programming languages.
var url = arr[0];
It's seems to be a normal array not a JSON, but if you want you can treat it as JSON:
var image = JSON.parse('["https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"]')[0];
console.log(image); //https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg
Be aware of the difference between an array, and a JSON object.
I have given some examples of the differences and how to access them.
// This is an array containing 1 value.
myobj = ["https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"];
// it can be accessed by either the array name (since it only hase one value) or the array name and index of the value in cases where the array actually has more than one value.
var example1 = [myobj];
document.write("This is my single value array:<br>" + example1 + "<br><br>");
// This is probably best practice regardless of the number of items in the array.
var example2 = myobj[0];
document.write("Now im specificing the index, incase there are more that one urls in the array:<br>" + example1 + "<br><br>");
// This is a JSON object
myJsonObj = {"url":"https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"}
// You access the value of the URL like this:
var example3 = myJsonObj.url;
document.write("Here is the value from a JSON object:<br>" + example3 );
Hope this helps
Just use parse function:
var text = '["https://upload.wikimedia.org/wikipedia/commons/5/57/Cassini_Helene_N00086698_CL.jpg"]';
var obj = JSON.parse(text);
https://jsfiddle.net/esouc488/1/
I have a string with values i want to use. I'm parsing this string as an JSON object using $.parseJSON. However I'm having problems getting the actual values.
In this case I'm trying to get the value of the key "textarea1" which is "banana". What is the correct syntax for getting the values. I tried obj.texts.textarea1, but it didn't work.
The string looks like this:
var obj = "[{\"texts\":[{\"default\":true,\"bread-texts\":false,\"textarea1\":\"Banana\",\"textarea2\":\"Kiwi\",\"textarea3\":\Apple\",\"textarea4\":\"coffe\",\"textarea5\":\"Tea\",\"signature\":true,\"profile\":\"header\",\"fontsize\":\"26\",\"fontsize-headers\":\"10.5\",\"fontcolor\":\"#0000\",\"textfont\":\"header-large\",\"textsub1\":\"Bold\",\"font\":\"ICA%20Text\",\"textsub\":\"Regular\",\"textsize\":\"20\",\"textsize-signature\":\"9.5\",\"textsizesmall\":\"5.5\",\"textsizesmall-placer\":\"2.75\",\"vers-placer\":\"false\",\"text-colored\":\"%23000000\",\"s-all-customers\":true,\"new-customers\":true,\"undefined\":\"\"}]}]";
Script:
var oldVal = $.parseJSON(obj);
missing quote on \Apple
You access obj but need to access oldVal
you have nested arrays so you need array notation to get at them or flatten the arrays
You do not need jQuery and likely have not defined it. JSON.parse will work
var obj = "[{\"texts\":[{\"default\":true,\"bread-texts\":false,\"textarea1\":\"Banana\",\"textarea2\":\"Kiwi\",\"textarea3\":\"Apple\",\"textarea4\":\"coffe\",\"textarea5\":\"Tea\",\"signature\":true,\"profile\":\"header\",\"fontsize\":\"26\",\"fontsize-headers\":\"10.5\",\"fontcolor\":\"#0000\",\"textfont\":\"header-large\",\"textsub1\":\"Bold\",\"font\":\"ICA%20Text\",\"textsub\":\"Regular\",\"textsize\":\"20\",\"textsize-signature\":\"9.5\",\"textsizesmall\":\"5.5\",\"textsizesmall-placer\":\"2.75\",\"vers-placer\":\"false\",\"text-colored\":\"%23000000\",\"s-all-customers\":true,\"new-customers\":true,\"undefined\":\"\"}]}]";
var oldVal = JSON.parse(obj);
console.log(oldVal[0].texts[0].textarea1)
If you want to access oldVal.texts.textarea1 you need to remove the array:
var obj = "{\"texts\":{\"default\":true,\"bread-texts\":false,\"textarea1\":\"Banana\",\"textarea2\":\"Kiwi\",\"textarea3\":\"Apple\",\"textarea4\":\"coffe\",\"textarea5\":\"Tea\",\"signature\":true,\"profile\":\"header\",\"fontsize\":\"26\",\"fontsize-headers\":\"10.5\",\"fontcolor\":\"#0000\",\"textfont\":\"header-large\",\"textsub1\":\"Bold\",\"font\":\"ICA%20Text\",\"textsub\":\"Regular\",\"textsize\":\"20\",\"textsize-signature\":\"9.5\",\"textsizesmall\":\"5.5\",\"textsizesmall-placer\":\"2.75\",\"vers-placer\":\"false\",\"text-colored\":\"%23000000\",\"s-all-customers\":true,\"new-customers\":true,\"undefined\":\"\"}}";
1st Option
You need not to change anything. Just fix your JSON in correct format.
You can use JsonLint to check your JSON is correct or not. Then Proceed further.
var obj = "[{\"texts\":[{\"default\":true,\"bread-texts\":false,\"textarea1\":\"Banana\",\"textarea2\":\"Kiwi\",\"textarea3\":\"Apple\",\"textarea4\":\"coffe\",\"textarea5\":\"Tea\",\"signature\":true,\"profile\":\"header\",\"fontsize\":\"26\",\"fontsize-headers\":\"10.5\",\"fontcolor\":\"#0000\",\"textfont\":\"header-large\",\"textsub1\":\"Bold\",\"font\":\"ICA%20Text\",\"textsub\":\"Regular\",\"textsize\":\"20\",\"textsize-signature\":\"9.5\",\"textsizesmall\":\"5.5\",\"textsizesmall-placer\":\"2.75\",\"vers-placer\":\"false\",\"text-colored\":\"%23000000\",\"s-all-customers\":true,\"new-customers\":true,\"undefined\":\"\"}]}]";
var oldVal = JSON.parse(obj);
alert(oldVal[0].texts[0].textarea1)
2nd Option
If you want to get the result like obj.texts.textarea1 then you'll have to change your data as following.
Format Your JSON
Remove all [ and ] from your json.
then do.
var a = '{"texts": {"default": true,"bread-texts": false,"textarea1": "Banana","textarea2": "Kiwi","textarea3": "Apple","textarea4": "coffe","textarea5": "Tea","signature": true,"profile": "header","fontsize": "26","fontsize-headers": "10.5","fontcolor": "#0000","textfont": "header-large","textsub1": "Bold","font": "ICA%20Text","textsub": "Regular","textsize": "20","textsize-signature": "9.5","textsizesmall": "5.5","textsizesmall-placer": "2.75","vers-placer": "false","text-colored": "%23000000","s-all-customers": true,"new-customers": true,"undefined": ""} }';
var obj = JSON.parse(a);
Then
obj.texts.textarea1;
You've created array in your JSON so for that you need to do array accessing.
obj is of type string. You can not index it as object in the form obj.texts. You are parsing it using $.parseJSON, then use the object returned by that call:
var oldVal = $.parseJSON( obj );
var value = oldVal[0].texts[0].textarea1;
Your JSON is invalid.
At this place, you are missing a quote:
\"textarea3\":\Apple\" (escaped)
"textarea3":Apple" (unescaped)
JSON parsing will fail at this point.
After fixing this typo, I can easily access your JSON items this way:
var obj = "[{\"texts\":[{\"default\":true,\"bread-texts\":false,\"textarea1\":\"Banana\",\"textarea2\":\"Kiwi\",\"textarea3\":\"Apple\",\"textarea4\":\"coffe\",\"textarea5\":\"Tea\",\"signature\":true,\"profile\":\"header\",\"fontsize\":\"26\",\"fontsize-headers\":\"10.5\",\"fontcolor\":\"#0000\",\"textfont\":\"header-large\",\"textsub1\":\"Bold\",\"font\":\"ICA%20Text\",\"textsub\":\"Regular\",\"textsize\":\"20\",\"textsize-signature\":\"9.5\",\"textsizesmall\":\"5.5\",\"textsizesmall-placer\":\"2.75\",\"vers-placer\":\"false\",\"text-colored\":\"%23000000\",\"s-all-customers\":true,\"new-customers\":true,\"undefined\":\"\"}]}]";
// using JSON.parse
document.body.innerHTML = JSON.parse(obj)[0].texts[0].textarea1;
// or using jQuery
document.body.innerHTML += $.parseJSON(obj)[0].texts[0].textarea1;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
So, I have the following data here:
{"screenName":"fubars","msgHash":"C5STUYqhjzNiP6LLVbPlTF3zYLVYXHrm","imgURL":null,"userColor":"#00a4a0","messageTime":"2:50 PM","messageDate":1442256635621,"accountType":"m","accountTypeID":"z2ZkdXqck-JO45hqXVXH","isModerator":"","badges":""
I've written some regex to extract strings, but if I search for example "screenName" it gets the "fubars" part and the rest of the string, I only want the "fubars" part...
code:
function extractSummary(iCalContent, what) {
eval("var rxm = /\""+what+"\": \"(.*)\"/g");
console.log(rxm);
setTimeout(function(){},1500);
var arr = rxm.exec(iCalContent);
return arr[1];
}
If you have some data in the form of a JSON string, you can use JSON.parse to convert it into a JSON object. You can then use dot or index property getters.
var jsonString = '{"screenName":"fubars","msgHash":"C5STUYqhjzNiP6LLVbPlTF3zYLVYXHrm"}';
var jsonObject = JSON.parse(jsonString);
console.log(jsonObject.screenName);
console.log(jsonObject['screenName']);
There's no need to use regexes here.