⚙ Compilation target
ESNext
⚙ Library
ESNext
Missing / Incorrect Definition
According to the MDN docs, when style is set to currency, then the currency property must be provided.
This could be achieved through a discriminating union on the style property e.g.
interface NumberFormatParamsStyleDecimal {
style: "decimal"
}
interface NumberFormatParamsStyleCurrency {
style: "currency"
currency: string
}
type NumberFormatParams = NumberFormatParamsStyleDecimal | NumberFormatParamsStyleCurrency;
const numberFormat = (params: NumberFormatParams) => {};
numberFormat({
style: "decimal",
})
numberFormat({
style: "currency",
currency: "USD"
})Sample Code
This fails at runtime, but does not fail compilation:
new Intl.NumberFormat("en", {
style: "currency",
currency: undefined
});VM159:1 Uncaught TypeError: Currency code is required with currency style.
at new NumberFormat (<anonymous>)
at <anonymous>:1:1
Documentation Link
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat#style
⚙ Compilation target
ESNext
⚙ Library
ESNext
Missing / Incorrect Definition
According to the MDN docs, when
styleis set tocurrency, then thecurrencyproperty must be provided.This could be achieved through a discriminating union on the
styleproperty e.g.Sample Code
Documentation Link
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat#style