CODEWITHSUNDEEP
javascriptjavascript-objects
Shubham Londhe
Shubham Londhe

Reputation: 1

Javascript objects creation method

I have created an object named computer but it is giving me the error Uncaught SyntaxError: Invalid shorthand property initializer and Uncaught ReferenceError: computer is not defined

What I can be done where I am going wrong? Please help.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <script type="text/javascript">
        computer = {drive: "floppy", cpu = "intel", ram: "ddr"}
    </script>
</head>
<body>
<script type="text/javascript">
    document.write(computer.drive);
</script>

</body>
</html>

Upvotes: -1

Views: 70

Answers (2)

Djave
Djave

Reputation: 9329

You have two errors:

  1. Invalid shorthand property initializer
  2. Uncaught ReferenceError: computer is not defined

These sound scary but they are both quite straight forward to fix.

Invalid shorthand property initializer

{drive: "floppy", cpu = "intel", ram: "ddr"}
                      ^

This = should be a : like the other bits of your object. If you'd have Googled this on its own you would have been able to fix it yourself. The shorthand syntax is something else you can use, so if you wrote something like:

var cpu = "intel";
var computer = {drive: "floppy", cpu, ram: "ddr"}

That would be an example of valid shorthand, and is the same as writing

var cpu = "intel";
var computer = {drive: "floppy", cpu: cpu, ram: "ddr"}

Uncaught ReferenceError: computer is not defined

When we write var or let or const we are declaring variables. In your case, you just write:

computer = { ...

The error is telling you quite clearly that you haven't defined a variable called that, or it can't find one. This is a simple fix:

var computer = {

As a sidenote, notice that above when declaring a variable it is correct to use an equals sign, but when you are in an {} object, you should always use colons.

Upvotes: 0

Akshay Bande
Akshay Bande

Reputation: 2587

You forgot to declare it.

    const computer = {drive: "floppy", cpu: "intel", ram: "ddr"}

Upvotes: 0

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