@fable-org/fable-library-js/Numeric.js

Core library used by F# projects compiled with fable.io

export const symbol = Symbol("numeric");
export function isNumeric(x) {
    return typeof x === "number" || typeof x === "bigint" || x?.[symbol];
}
export function isIntegral(x) {
    // Not perfect, because in JS we can't distinguish between 1.0 and 1
    return typeof x === "number" && Number.isInteger(x) || typeof x === "bigint";
}
export function compare(x, y) {
    if (typeof x === "number") {
        return x < y ? -1 : (x > y ? 1 : 0);
    }
    else if (typeof x === "bigint") {
        return x < y ? -1 : (x > y ? 1 : 0);
    }
    else {
        return x.CompareTo(y);
    }
}
export function multiply(x, y) {
    if (typeof x === "number") {
        return x * y;
    }
    else if (typeof x === "bigint") {
        return x * BigInt(y);
    }
    else {
        return x[symbol]().multiply(y);
    }
}
export function toFixed(x, dp) {
    if (typeof x === "number") {
        return x.toFixed(dp);
    }
    else if (typeof x === "bigint") {
        return x.toString();
    }
    else {
        return x[symbol]().toFixed(dp);
    }
}
export function toPrecision(x, sd) {
    if (typeof x === "number") {
        return x.toPrecision(sd);
    }
    else if (typeof x === "bigint") {
        return x.toString();
    }
    else {
        return x[symbol]().toPrecision(sd);
    }
}
export function toExponential(x, dp) {
    if (typeof x === "number") {
        return x.toExponential(dp);
    }
    else if (typeof x === "bigint") {
        return x;
    }
    else {
        return x[symbol]().toExponential(dp);
    }
}
export function toHex(x) {
    if (typeof x === "number") {
        return (Number(x) >>> 0).toString(16);
    }
    else if (typeof x === "bigint") {
        // TODO: properly handle other bit sizes
        return BigInt.asUintN(64, x).toString(16);
    }
    else {
        return x[symbol]().toHex();
    }
}