如何使用 typescript 将计算值分配给枚举

Question

I wanted assign values to enum type. note:text and text1 are actually coming from different file.

const text = "sample text";
const text1 = "Sample text";

const enum textDisplay{
  text = text;
  text1 = text1;
}

Answer 1

that's not how enum work, you can't assign dynamic values to enum, computed values are not permitted in an enum with string valued members.

https://www.typescriptlang.org/docs/handbook/enums.html

The enum member is initialized with a constant enum expression. A constant enum expression is a subset of TypeScript expressions that can be fully evaluated at compile time. An expression is a constant enum expression if it is:

• a literal enum expression (basically a string literal or a numeric literal)

• a reference to previously defined constant enum member (which can originate from a different enum)

• a parenthesized constant enum expression

• one of the +, -, ~ unary operators applied to constant enum expression +, -, *, /, %, <<, >>, >>>, &, |, ^ binary operators with constant enum expressions as operands