When initializing an object, TypeScript automatically converts numbers to strings

I am working on a function that generates a POST request from class properties, but I have encountered an issue with data types.

Here's the code snippet:

public state: number;

updateField(field: string | number, name: string, team: boolean = true) {
  this.http.post('/update_key', {
        [path]: { [name]: field }
  })
}

In this code snippet, path represents a firebase path such as

/ipl_data/match_info/current_match

I invoke the function like this:

this.updateField(this.state, 'state', false);

However, the issue arises when the request body is created. The expected result should be:

{
  "/ipl_data/match_info/current_match": {
    "state":"3"
  }          ^------ Inconsistent datatype: expecting a number
}

Is there a solution to handle this problem?

Answer №1

It is likely that your this.state === "3" was set improperly to begin with. Please review where you initially assigned a value to this.state.

This issue pertains more to JavaScript than TypeScript. It's important to recognize that TypeScript does not affect how your code behaves at runtime; its impact is limited to your IDE and during the compilation process.

Answer №2

Here is a potential solution:

modifyData(selection: string | number, label: string, isActive: boolean = true) {
  this.ajax.send('/update_selection', {
        [target]: { [label]: !isNaN(selection) ? +selection : selection }
  })
}

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