preact-arco-design/es/Slider/utils.js

Arco Design React UI Library.

var __read = this && this.__read || function (o, n) {
  var m = typeof Symbol === "function" && o[Symbol.iterator];
  if (!m) return o;
  var i = m.call(o),
      r,
      ar = [],
      e;

  try {
    while ((n === void 0 || n-- > 0) && !(r = i.next()).done) {
      ar.push(r.value);
    }
  } catch (error) {
    e = {
      error: error
    };
  } finally {
    try {
      if (r && !r.done && (m = i["return"])) m.call(i);
    } finally {
      if (e) throw e.error;
    }
  }

  return ar;
}; // 精确 加减乘除


import { plus, minus, times, divide } from 'number-precision';
export function getPrecision(val) {
  var decimal = "".concat(val).split('.')[1];
  return decimal && decimal.length || 0;
}
export function formatPercent(val) {
  return "".concat(val * 100, "%");
}
export function getOffset(val, range) {
  var value = Number(val);

  if (range && !isNaN(value)) {
    var _a = __read(range, 2),
        min = _a[0],
        max = _a[1]; // 精确算出=> (value - min) / (max - min);


    return divide(minus(value, min), minus(max, min));
  }

  return 0;
}
export function valueInRange(val, range) {
  var value = Number(val);
  range.sort(function (a, b) {
    return a - b;
  });
  return value >= range[0] && value <= range[1];
}
export function isNotEmpty(val) {
  return val || val === 0;
} // 把 20% => 0.2

export function rateToFloat(val) {
  var rate = parseFloat(val);
  var fixedRate = rate > 1 ? (rate / 100).toFixed(2) : rate;
  var floatRate = parseFloat(fixedRate);

  if (!isNaN(floatRate) && floatRate >= 0 && floatRate <= 1) {
    return floatRate;
  }

  return undefined;
}
export function getIntervalOffset(val, intervalConfig) {
  // 当前值所在的区间
  var currentInterval = intervalConfig.find(function (config) {
    return val >= config.begin && val <= config.end;
  });

  if (currentInterval) {
    var beginOffset = currentInterval.beginOffset,
        begin = currentInterval.begin,
        end = currentInterval.end,
        endOffset = currentInterval.endOffset;
    var offsetInInterval = getOffset(val, [begin, end]); // endOffset - beginOffset

    var intervalOffset = minus(endOffset, beginOffset); // 当前值在整个滑动轴上占的比例 = 在区间占的比例 * 区间相对于整个轴的比例
    // offsetInInterval* intervalOffset

    var offset = times(offsetInInterval, intervalOffset);
    return plus(beginOffset, offset);
  }
}