divideByThousand

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divideByThousand
说明
将数字按千位分隔
源码
​https://github.com/ddzy/ts-utility-plugins/tree/master/src/ddzy/utility/number/divideByThousand​
用法
divideByThousand.test.ts
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import { divideByThousand } from "../../utility/number/divideByThousand";
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​
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​
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describe('divideByThousand tests...', () => {
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​
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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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​
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    received.forEach((v, i) => {
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      const result = divideByThousand(v);
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​
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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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  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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​
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    received.forEach((v, i) => {
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      const result = divideByThousand(v.num, v.separator);
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​
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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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})
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