When parsing my array, everything works fine if it is defined:
JSON.parse(myArray);
However, I encounter an exception if myArray is undefined.
What would be the best solution for this? Is there a more efficient alternative to this:
JSON.parse(myArray || '[]');
It's like verifying the object first to prevent exceptions if it's undefined
if (obj) {
//do something with obj.something
}
So, is there a more concise way than
JSON.parse(myArray || '[]');
Thank you.
Your current approach seems to be effective. There doesn't appear to be a compelling reason to modify it, but if you think a change is needed, two options come to mind:
Firstly, you could set myArray to an empty array by default before assigning any values to it.
var myArray = '[]';
Alternatively, if myArray is a parameter being passed to a function that you are extracting it from, you can specify a default value in the function's arguments.
function dosomething(myArray = '[]') {
JSON.parse(myArray);
}
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