@eagleoutice/flowr/util/text.js

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.nth = nth;
const assert_1 = require("./assert");
function nth(n) {
    (0, assert_1.guard)(isFinite(n) && n >= 1, 'n must be a non-negative number');
    const num = String(n);
    const lastDigit = num[num.length - 1];
    switch (lastDigit) {
        case '1':
            return n > 0 && n < 20 ? `${n}th` : `${n}st`;
        case '2':
            return n > 0 && n < 20 ? `${n}th` : `${n}nd`;
        case '3':
            return n > 0 && n < 20 ? `${n}th` : `${n}rd`;
        default:
            return `${n}th`;
    }
}
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