Suppose I have an object like this
var obj = {
"name": "arun"
age
}
When I try this, JSON.stringify(obj), I will be recieving an error since the obj is not proper. I want to capture the error shown in the console and show it in the UI.
Is there any callback functionality for the stringify function,so that I can do the above?.
First thing, there is a syntax error, after "name": "arun" you need to add ,
we can't get syntax error programmatically. after correcting this syntax error, you can check like this
try{
var obj = {
"name": "arun",
age
}
} catch(e){
console.log(e);// you can get error here
}
You aren't going to get an error from JSON.stringify, here.
As soon as you try to make this object, you should get an error.
var obj = {
name: "Arun" // you're missing a comma
age //this is valid, as long as `age` exists as a variable above this point, in new browsers
};
In all browsers, as soon as you run this part of the script, it's going to throw a SyntaxError, because you're missing the comma.
If you added that comma back in, and age did exist above:
var age = 32;
var obj = {
name: "Arun",
age
};
This would now work fine in brand-new browsers, but would again throw a SyntaxError in older browsers.
The legacy-compatible version of that object would look like:
var age = 32;
var obj = {
name: "Arun",
age: age
};
The problem you're having doesn't seem to be that .stringify would be breaking.
Based on the object you provided, your statement is broken, period.
var obj = { ]; is not JSON, it's JS. And it will explode before you ever try to put it inside of stringify. If you are downloading it as JSON text, that's a very different thing, and then you wouldn't use stringify, you'd use parse to turn the string into a JS object. Which do you mean?You can try it a way as below:
var age = 34;
ar obj = { name: "arun", age }
console.log(JSON.stringify(obj));
