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51 lines
1.5 KiB
51 lines
1.5 KiB
4 months ago
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.mid = exports.multi = exports.ifPositive = exports.ifNegative = void 0;
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exports.toPrecision = toPrecision;
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exports.toThousands = toThousands;
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exports.toScientificNotation = toScientificNotation;
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exports.toKNotation = toKNotation;
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/**
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* 保留x位小数
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*/
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function toPrecision(num, precision) {
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return +num.toPrecision(precision);
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}
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/**
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* 千分位
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* 100000 -> 10,000
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*/
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function toThousands(num) {
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return num.toLocaleString();
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}
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/**
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* 获得数字科学计数
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* 1000000 = 1e6
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*/
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function toScientificNotation(num) {
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return num.toExponential();
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}
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/**
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* 用k的方式表达
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* 1234 -> 1K
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* 12345 -> 12K
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*/
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function toKNotation(num, precision) {
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if (precision === void 0) { precision = 0; }
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if (Math.abs(num) < 1000)
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return String(num);
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return "".concat(toPrecision(num / 1000, precision).toLocaleString(), "K");
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}
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// Condition if x is smaller than zero.
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var ifNegative = function (x, a, b) { return (x < 0 && Number.isFinite(x) ? a : b); };
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exports.ifNegative = ifNegative;
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// Condition if x is greater than zero.
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var ifPositive = function (x, a, b) { return (x > 0 && Number.isFinite(x) ? a : b); };
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exports.ifPositive = ifPositive;
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// Calculate the result of a * b.
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var multi = function (a, b) { return a * b; };
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exports.multi = multi;
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// Calculate the result of (a + b) / 2.
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var mid = function (a, b) { return a / 2 + (b || 0) / 2; };
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exports.mid = mid;
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//# sourceMappingURL=number.js.map
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