One of my requirement in the javascript, I am trying to convert the string which is passing from the database to javascript object.
Step1:
String passing from the databse:
"validator":["required","numeric","maxLength:14","{type: amountValidate}"]
Step2: Converting to javascript object using JSON.Parse() method, output as follows:
validator: Array(4)
0: "required"
1: "numeric"
2: "maxLength:14"
3: "{type: amountValidate}"
length: 4
Expected output is:
In the below code amountValidate is converting into the function by tabulator js api.
validator:["required","numeric","maxLength:14",{
type:amountValidate,
}]
Since I am applying the below function to the type:amountValidate, it should behave as a variable and it should not be in the double quotes.
var amountValidate = function(cell, value, parameters){
var regex = /^\s*-?(\d+(\.\d{1,2})?|\.\d{1,2})\s*$/
var n = value.match(regex);
if(n !== null){
return true;
}else{
return false;
}
}
Thanks in advance.
The main problem here is that your string is not a valid JSON. Should be something like:
'{"validator": ["required","numeric","maxLength:14", {"type": "amountValidate"}]}'
There are multiple json formatters/validators online, like this one, that you could use to check it.
I have a textbox which accepts user defined key value pairs like:
{'Apple':'Red', 'Lemon':'Green'} and i want it to be converted to an array of key value pair.
I have code:
var color= document.getElementById('txtColor').value;
The problem is i get it just as a string if i try: color['Apple'] it shows undefined; whereas i expect 'Red'. How can i do the conversion so that i get something like:
var color={'Apple':'Red', 'Lemon':'Green'}
and get value 'Red' on color['Apple'].
Thanks in advance.
I have a similar usecase. You have to JSON.parse() the value.
var obj = JSON.parse(document.getElementById('txtColor').value.replace(/'/g, '"'));
console.log(obj['Apple']);
<textarea id="txtColor">{'Apple':'Red', 'Lemon':'Green'}</textarea>
I assume following
let color = document.getElementById('txtColor').value; // This line returns {'Apple':'Red', 'Lemon':'Green'}
If I'm correct you can do following
try {
// Here you can write logic for format json ex. Convert single quotes to double quotes
// This may help to convert well formatted json string https://stackoverflow.com/questions/4810841/how-can-i-pretty-print-json-using-javascript
let colorJson = JSON.parse(color);
console.log(colorJson["Apple"]) // This will return your expected value.
} catch(e) {
console.log('Invalid json format')
}
var color = document.getElementById('txtColor').value;
//JSON.stringify will validate the JSON string
var jsonValidString = JSON.stringify(eval("(" + color + ")"));
//If JSON string is valid then we can conver string to JSON object
var JSONObj = JSON.parse(jsonValidString);
//We can use JSON.KeyName or JSON["KeyName"] both way you can get value
console.log(JSONObj.Apple, " --- ", JSONObj["Apple"]);
console.log(JSONObj.Lemon, " --- ", JSONObj["Lemon"]);
<input id="txtColor" value="{'Apple':'Red', 'Lemon':'Green'}" type="text" />
I want to format base64 encoded string, when I send the below string in JSON request - I am getting JSON validation error because this string is not formatted properly. I couldn't find any good utility which converts from base64 encoded string to the proper one.
Is there any utility in Java/Groovy or Javascript to format in a single line.
Appreciated your help
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}
// if this is your Base64 encoded string
var str = 'VGhpcyBpcyBhbiBhd2Vzb21lIHNjcmlwdA==';
// make URL friendly:
str = str.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=+$/, '');
// reverse to original encoding
str = (str + '===').slice(0, str.length + (str.length % 4));
str = str.replace(/-/g, '+').replace(/_/g, '/');
If By Formatting what you mean is making it URL friendly, Above Goes the Code!
If you are referring to encoding and decoding of the String,
You can use btoa() and atob() to convert to and from base64 encoding
If I understood well you have problems to make a valid JSON with an base64 string.
I would recommend this:
Use the JavaScript function
JSON.stringify(encodedData) which returns an escaped string that you can use it with no problems in your JSON afterwards.
The encoded data is a PDF file, so it is binary data and you should not attempt to convert it to a String.
Instead, deal with the Bytes, for instance, by writing it to a file. In Groovy:
// String s = <your JSON>
Byte[] b = new groovy.json.JsonSlurper().parseText(s) // no errors here, the JSON you supplied is valid
."data" // GPath syntax for getting the "data" element in the JSON
.replaceAll (/\s/, "") // remove spaces and newlines
.decodeBase64() // returns an array of Byte
new File("somefile.pdf").bytes = b
Opening somefile.pdf, I can see:
Adobe Acrobat PDF Files
Adobe Portable Document Format (PDF) is a universal file format that preserves allof the fonts, formatting, colours and graphics of any source document, regardless ofthe application and platform used to create it.
...
If the encoded data had in fact been a String, you could get the original String just by String x = new String(b).
I have an API that returns me a string that contains an array of arrays. The arrays contains strings, like here:
"[['cat','mouse'],['duck','fish'],['lion','zebra']]"
and I want to convert it into a JSON object.
I've tried JSON.parse, but it's giving me an error
Blockquote
[['+00:00 (Etc/GMT)','+00:00 (Etc/GMT)'],['+03:00 (Europe/Kaliningrad)','+03:0
^
SyntaxError: Unexpected token '
The string that im trying to turn into an object is this one:
"[['+00:00 (Etc/GMT)','+00:00 (Etc/GMT)'],['+03:00 (Europe/Kaliningrad)','+03:00 (Europe/Kaliningrad)'],['-01:00 (Etc/GMT+1)','-01:00 (Etc/GMT+1)'],['AKST (America/Anchorage)','AKST (America/Anchorage)'],['ART (America/Argentina/Buenos_Aires)','ART (America/Argentina/Buenos_Aires)'],['AST (America/Puerto_Rico)','AST (America/Puerto_Rico)'],['AST (Asia/Baghdad)','AST (Asia/Baghdad)'],['AST (Atlantic/Bermuda)','AST (Atlantic/Bermuda)'],['BRT (America/Sao_Paulo)','BRT (America/Sao_Paulo)'],['CET (CET)','CET (CET)'],['CET (Europe/Amsterdam)','CET (Europe/Amsterdam)'],['CET (Europe/Brussels)','CET (Europe/Brussels)'],['CET (Europe/Budapest)','CET (Europe/Budapest)'],['CET (Europe/Madrid)','CET (Europe/Madrid)'],['CET (Europe/Oslo)','CET (Europe/Oslo)'],['CET (Europe/Paris)','CET (Europe/Paris)'],['CET (Europe/Prague)','CET (Europe/Prague)'],['CET (Europe/Vienna)','CET (Europe/Vienna)'],['CET (Europe/Warsaw)','CET (Europe/Warsaw)'],['CET (Europe/Zurich)','CET (Europe/Zurich)'],['CLST (America/Santiago)','CLST (America/Santiago)'],['COT (America/Bogota)','COT (America/Bogota)'],['CST (America/Chicago)','CST (America/Chicago)'],['CST (America/Costa_Rica)','CST (America/Costa_Rica)'],['CST (America/Mexico_City)','CST (America/Mexico_City)'],['CST (Asia/Shanghai)','CST (Asia/Shanghai)'],['CST (Asia/Taipei)','CST (Asia/Taipei)'],['CST (Australia/Adelaide)','CST (Australia/Adelaide)'],['EAT (Africa/Nairobi)','EAT (Africa/Nairobi)'],['EET (EET)','EET (EET)'],['EET (Europe/Istanbul)','EET (Europe/Istanbul)'],['EET (Europe/Kiev)','EET (Europe/Kiev)'],['EST (America/Indiana/Indianapolis)','EST (America/Indiana/Indianapolis)'],['EST (America/New_York)','EST (America/New_York)'],['EST (Australia/Brisbane)','EST (Australia/Brisbane)'],['EST (Australia/Melbourne)','EST (Australia/Melbourne)'],['EST (Australia/Sydney)','EST (Australia/Sydney)'],['GMT (Europe/Dublin)','GMT (Europe/Dublin)'],['GMT (Europe/London)','GMT (Europe/London)'],['GST (Asia/Dubai)','GST (Asia/Dubai)'],['HKT (Asia/Hong_Kong)','HKT (Asia/Hong_Kong)'],['HST (Pacific/Honolulu)','HST (Pacific/Honolulu)'],['ICT (Asia/Bangkok)','ICT (Asia/Bangkok)'],['IST (Asia/Jerusalem)','IST (Asia/Jerusalem)'],['IST (Asia/Kolkata)','IST (Asia/Kolkata)'],['JST (Asia/Tokyo)','JST (Asia/Tokyo)'],['KST (Asia/Seoul)','KST (Asia/Seoul)'],['MSK (Europe/Moscow)','MSK (Europe/Moscow)'],['MST (America/Denver)','MST (America/Denver)'],['MST (America/Phoenix)','MST (America/Phoenix)'],['MST (MST)','MST (MST)'],['MYT (Asia/Kuala_Lumpur)','MYT (Asia/Kuala_Lumpur)'],['NZDT (Pacific/Auckland)','NZDT (Pacific/Auckland)'],['PET (America/Lima)','PET (America/Lima)'],['PHT (Asia/Manila)','PHT (Asia/Manila)'],['PST (America/Los_Angeles)','PST (America/Los_Angeles)'],['PYST (America/Asuncion)','PYST (America/Asuncion)'],['SAST (Africa/Johannesburg)','SAST (Africa/Johannesburg)'],['SGT (Asia/Singapore)','SGT (Asia/Singapore)'],['TJT (Asia/Dushanbe)','TJT (Asia/Dushanbe)'],['UTC (UTC)','UTC (UTC)'],['VET (America/Caracas)','VET (America/Caracas)'],['WET (Europe/Lisbon)','WET (Europe/Lisbon)'],['WST (Australia/Perth)','WST (Australia/Perth)']]"
This is not valid JSON. You have to replace the ' characters with ".
Your JSON is invalid as mentioned in the first answer but this is a quick fix.
Say you have:
a = "[['+00:00 (Etc/GMT)','+00:00 (Etc/GMT)'],['+03:00 (Europe/Kalini..
Then replace the ' with ":
a = a.replace(/'/g, '"');
Then parse it to JSON:
a = jQuery.parseJSON(a)
Then you have a valid JSON, try console.table(a) to see your valid json!
I have the following code:
data = {'services': [u'iTunes'],
'orders': [u'TestOrder', u'Test_April_Titles_iTunes'],
'providers': ''}
return HttpResponse(simplejson.dumps(data))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py" in default
178. raise TypeError(repr(o) + " is not JSON serializable")
Exception Type: TypeError at /reports/change_dropdown/
Exception Value: [u'iTunes'] is not JSON serializable
What do I need to do to serialize this dictionary with a list inside it?
The problem is that itunes is a non-JSON compatible type.
To solve provide default type to convert non-JSON compatible types when serializing:
simplejson.dumps(data, default=str))
or even:
def handler(val):
if isinstance(val, unicode)
return str(val)
else:
return val
simplejson.dumps(data, default=handler))
The advantage of the second option is you can handle sets (e.g., convert to list), dates (e.g., convert to int timetstamp), etc.
Converting from unicode to str worked here:
data['services'] = [str(item) for item in data['services']]
data['orders'] = [str(item) for item in data['orders']]
data['providers'] = [str(item) for item in data['providers']]