Utility
divideByThousand
说明
将数字按千位分隔
源码
用法
divideByThousand.test.ts
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import { divideByThousand } from "../../utility/number/divideByThousand";
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describe('divideByThousand tests...', () => {
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test('method divideByThousand should return the correct value', () => {
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const received: number[] = [
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// 小于千位的数字
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11, 45, -56, 0,
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// 刚好等于千位的数字
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110, -323,
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// 大于千位的数字
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1100, 3456687, -4534236423642364,
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];
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const expected = [
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'11', '45', '-56', '0',
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'110', '-323',
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'1,100', '3,456,687', '-4,534,236,423,642,364'
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];
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received.forEach((v, i) => {
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const result = divideByThousand(v);
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expect(result).toBe(expected[i]);
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});
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});
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test('method divideByThousand should use customized separator that passed', () => {
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const received = [
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{
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num: 12345,
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separator: '_',
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},
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];
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const expected = ['12_345'];
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received.forEach((v, i) => {
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const result = divideByThousand(v.num, v.separator);
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expect(result).toBe(expected[i]);
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});
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});
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})
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