I'm converting a Object in Typescript to a string to store into a database.

formData.survey_data = encodeURI(JSON.stringify(formData.survey_data));

The output works,in the browser but typescript insists I have an error.

Type 'string' is not assignable to type 'any[]'

What does that even mean?

I'm converting a Object in Typescript to a string to store into a database.

formData.survey_data = encodeURI(JSON.stringify(formData.survey_data));

The output works,in the browser but typescript insists I have an error.

Type 'string' is not assignable to type 'any[]'

What does that even mean?

• javascript
• angularjs
• json
• typescript

Share Improve this question Follow asked Oct 3, 2016 at 13:28 Caleb PrengerCaleb Prenger 2,07744 gold badges1515 silver badges1313 bronze badges 2

• What is the type of survey_data? – Whymarrh Commented Oct 3, 2016 at 13:30
• I defined it as an array, that was my issue. I defined it as an array and tried to make it a string. – Caleb Prenger Commented Oct 3, 2016 at 13:42

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1 Answer 1

Sorted by: Reset to default 4

formData.survey_data = encodeURI(JSON.stringify(formData.survey_data));

Based on the code provided, I would assume that survey_data is type any[]. You are serializing your object and trying to assign it to that property. TypeScript is strongly typed and won't allow you to do that even though JavaScript may be able to handle that scenario. (Because JavaScript isn't strongly typed you can assign any object to any property).