CODEWITHSUNDEEP
javascriptnullinternet-explorer-9
just__matt
just__matt

Reputation: 484

Javascript breaking on null value of property in Internet Explorer - How can I get IE to ignore this?

Internet explorer is generating this error for the code that follows:

SCRIPT5007: Unable to get value of the property '0': object is null or undefined for "document.getElementById('files').files[0]"

It's correct that ...files[0] is null, but I don't care, how can I tell IE not to care?

Thanks

Upvotes: 0

Views: 2148

Answers (4)

darkness1528
darkness1528

Reputation: 11

This is very old but I want to answer for anyone who comes here like me

As Dennis says the error indicates that files is an undefined variable and I'm pretty sure that the problem is IE9 doesn't support files property.

As you can see here IE10 is requiered for.

So try this: 

var file; 
try{
   file = document.getElementById('files').files[0];
}catch(error){
   file= null;
}

PS: I apologize for my poor English

Upvotes: 1

Elliot Bonneville
Elliot Bonneville

Reputation: 53301

var file = document.getElementById('files').files[0] || "undefined";

Upvotes: 0

Dennis
Dennis

Reputation: 32598

var elem = document.getElementById('files'),
    file = elem.files && elem.files[0];

This will short-circuit and return undefined if files is undefined, otherwise it will return the first file.

Point of clarification, the error indicates that files is the undefined variable and accessing the property 0 is causing an error. If it were files[0] itself, the expression would just return undefined.

Upvotes: 3

jcreamer898
jcreamer898

Reputation: 8189

Try...

var file;
if (document.getElementById('files').files){
    file = document.getElementById('files').files[0];
}

Upvotes: 2

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