How to serialise a Python dictionary to a JavaScript object text?

Question

Can someone suggest a way to serialise a Python dictionary to JavaScript source code describing an equivalent object?

Note that this is different from JSON serialisation. In particular, the following example is important to me:

x = { True: 1, False: 0 }

Serialising this with json.dumps(x) results in:

{ "true": 1, "false": 0 }

What I want is:

{ true: 1, false: 0 }

This is a valid object declaration in JavaScript but is not valid JSON. Similar problems occur when using any non-string type as a dictionary key.

But what is the difference knowing that in JS keys are string type anyways? — Andrey
– Andrey, Commented Jan 24, 2020 at 13:52
@Andrey - that's not true. It's perfectly valid to declare a JS object with boolean keys. x = { true: 1, false: 2 }; console.log(x[true]); runs just fine. — Tom
– Tom, Commented Jan 24, 2020 at 13:56

sney2002 · Accepted Answer · 2020-01-24 14:29:40Z

1

In javascript object keys can only be strings or Symbols

You can access the object properties with true/false because javascript convert them to strings, you can see that they are actually string with:

var x = { true: 1, false: 0 }
console.log(Object.keys(x)) // ["true", "false"]

answered Jan 24, 2020 at 14:29

sney2002

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