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40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
/*
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* @Author: zhou lei
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* @Date: 2023-02-22 19:08:18
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* @LastEditTime: 2023-02-22 19:19:54
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* @LastEditors: zhou lei
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* @Description:自定义减法，解决浮点类型相减精度问题
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* @FilePath: \hgwms-factory-app\src\utils\subtraction.ts
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* 联系方式:910592680@qq.com 18669792120
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*/
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//自定义减法，解决浮点类型相减精度问题
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export function subtraction(arg1: number, arg2: number) {
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let r1: number, r2: number;
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try {
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r1 = arg1.toString().split('.')[1].length;
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} catch (e) {
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r1 = 0;
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}
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try {
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r2 = arg2.toString().split('.')[1].length;
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} catch (e) {
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r2 = 0;
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}
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const c = Math.abs(r1 - r2);
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const m = Math.pow(10, Math.max(r1, r2));
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if (c > 0) {
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const cm = Math.pow(10, c);
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if (r1 > r2) {
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arg1 = Number(arg1.toString().replace('.', ''));
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arg2 = Number(arg2.toString().replace('.', '')) * cm;
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} else {
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arg1 = Number(arg1.toString().replace('.', '')) * cm;
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arg2 = Number(arg2.toString().replace('.', ''));
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}
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} else {
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arg1 = Number(arg1.toString().replace('.', ''));
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arg2 = Number(arg2.toString().replace('.', ''));
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}
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return (arg1 - arg2) / m;
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}
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