I am trying to convert to object this string.
"JwtBody { user_id: 1, auth_id: 1}"
6 Answers
"JwtBody { user_id: 1, auth_id: 1}" is obviously not a standard json string,So you can try this.
function strToObj(str){
var obj = {};
if(str&&typeof str ==='string'){
var objStr = str.match(/\{(.)+\}/g);
eval("obj ="+objStr);
}
return obj
}
2 Comments
Jaromanda X
or just
eval("JwtBody { user_id: 1, auth_id: 1}".replace(/([^}]+?)({.*})/, '$1=$2')); - results in a var named JwtBody with the value of the object
Alexis Wilke
Only
eval() is not safe... If the string includes code, it's going to be executed.Could you use JSON.parse()?
I haven't used it myself, but it looks like create a variable and use JSON.parse("string") to have it converted into an object.
So, for your example it would be something like:
var object = JSON.parse("JwtBody { user_id: 1, auth_id: 1}");
1 Comment
kamoroso94
This will fail because the string is not well-formed JSON.
Not exactly sure what you're trying to do.
You could try something like this:
var str = '{"user_id": "1", "auth_id": "1"}';
var obj = $.parseJSON(str);
Be sure to have jquery like this:
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
2 Comments
Alexis Wilke
The
1 don't need to be quoted. Actually, they probably should not.If you can't change data from example:
var parsedData = {};
var str = "JwtBody { user_id: 1, auth_id: 1}";
function getRawJSON(str){
return str.split(' ').map((el, index)=>{return index>0 ? el : ''}).join('');
}
function formatingValidJSON(str){
// From https://stackoverflow.com/questions/9637517/parsing-relaxed-json-without-eval
return str
.replace(/:\s*"([^"]*)"/g, function(match, p1) {
return ': "' + p1.replace(/:/g, '@colon@') + '"';
})
.replace(/:\s*'([^']*)'/g, function(match, p1) {
return ': "' + p1.replace(/:/g, '@colon@') + '"';
})
.replace(/(['"])?([a-z0-9A-Z_]+)(['"])?\s*:/g, '"$2": ')
.replace(/@colon@/g, ':')
}
str = formatingValidJSON(getRawJSON(str));
try{
parsedData = JSON.parse(str);
console.log('Your parsed data:', parsedData);
}
catch(e){
console.log('Your data is wrong');
}
Comments
This JSON-like string can be parsed using vanilla JavaScript and regex by:
- Reducing string to only characters that String.match() JSON-like object string
- String.replace() property names to enclose matched names with quotations
- parsing object with JSON.parse
var jwtBodyString = "JwtBody { user_id: 1, auth_id: 1}";
`//1 match on only JSON within string
jwtBody = jwtBodyString.match(/{[^}]+}/).toString();`
//2 enclose property names to prevent errors with JSON.parse()
jwtBody = jwtBody.replace(/([a-zA-Z]+):/g,'"$1":'));
//3 obtain object
var myJwtBodyObject = JSON.parse(jwtBody);
Comments
Use JSON.parse()
Also, you're javascript string is invalid JSON which means it's invalid javascript. It should look like this:
JSON.parse('{"jwtbody" : { "user_id" : 1, "auth_id" : 1}}');
This will give you the corresponding javascript object you want.
JwtBodyand then use JSON.parse().