如何在同一config.js文件中重用常量

Question

I am trying to create a config.js file, which should contains the constants for the other js files that I have. I could not find any other information about that if it is possible to "reuse" the constants in the same config file.

For example:

const Config = { ROWS: 10, COLUMNS: ROWS, };

Answer 1

const tableWidth = 10;

const config = {
  ROWS: tableWidth,
  COLUMNS: tableWidth,
};

But instead of doing it this way, I would find a better name for the constant and use it anywhere it needs to be used, rather than setting two constants to the same value.

const config = {
  TABLE_DIMENSION: 10,
};

Answer 2

Seems like you want to reuse a property during object definition which unfortunately is not possible. Although, you can reuse them like this.

const Config = { ROWS: 10 }
Config.COLUMNS = Config.ROWS