Currently I'm utilizing Typescript and Angular 2 in my project, and I am interested in generating enums dynamically based on some JSON data. One specific use case is setting up an enum for a dropdown menu with options fetched from a JSON file. Any suggestions on how to achieve this?
When working with Typescript, it's important to understand that enums are transpiled into JavaScript arrays (refer to Enums in TypeScript: what is the JavaScript code doing?).
If you need to dynamically load an enum, simply load an array instead.
However, if your aim is to generate a select dropdown from this enum, it's recommended to deserialize your JSON and pass it to a component with a nested select, generating options by looping through the object using *ngFor.
The most straightforward approach involves formatting your JSON like this:
{
"selectData":[
{
"key":"foo",
"value":"bar"
}
]
}
This way, you can easily load your JSON and iterate over the selectData array, utilizing the key and value attributes to populate your select dropdown.
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