@nutui/nutui-react
Version:
京东风格的轻量级移动端 React 组件库，支持一套代码生成 H5 和小程序
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JavaScript
import { _ as _object_spread } from "@swc/helpers/_/_object_spread";
import { _ as _object_spread_props } from "@swc/helpers/_/_object_spread_props";
import { _ as _object_without_properties } from "@swc/helpers/_/_object_without_properties";
import { _ as _to_consumable_array } from "@swc/helpers/_/_to_consumable_array";
import React, { useCallback, useEffect, useMemo, useRef } from "react";
import { ComponentDefaults } from "../../utils/typings";
import { mergeProps } from "../../utils/merge-props";
var defaultProps = _object_spread_props(_object_spread({}, ComponentDefaults), {
length: 0,
value: '',
delay: 300,
duration: 1,
thousands: false
});
export var CountUp = function(props) {
var _mergeProps = mergeProps(defaultProps, props), length = _mergeProps.length, value = _mergeProps.value, delay = _mergeProps.delay, duration = _mergeProps.duration, className = _mergeProps.className, thousands = _mergeProps.thousands, style = _mergeProps.style, rest = _object_without_properties(_mergeProps, [
"length",
"value",
"delay",
"duration",
"className",
"thousands",
"style"
]);
var classPrefix = 'nut-countup';
var countupRef = useRef(null);
var timerRef = useRef(0);
var numbers = Array.from({
length: 10
}, function(v, i) {
return i;
});
var getShowNumber = function() {
var splitArr = value.split('.');
var intNumber = length && splitArr[0].length < length ? (Array(length).join('0') + splitArr[0]).slice(-length) : splitArr[0];
var currNumber = "".concat(thousands ? intNumber.replace(/(\d)(?=(?:\d{3})+$)/g, '$1,') : intNumber).concat(splitArr[1] ? '.' : '').concat(splitArr[1] || '');
return currNumber.split('');
};
var numberArr = useMemo(getShowNumber, [
value,
length,
thousands
]);
var setNumberTransform = useCallback(function() {
if (countupRef.current) {
var numberItems = countupRef.current.querySelectorAll('.nut-countup-number');
var numberFilterArr = numberArr.filter(function(item) {
return !Number.isNaN(Number(item));
});
Object.keys(numberItems).forEach(function(key) {
var elem = numberItems[Number(key)];
var idx = Number(numberFilterArr[Number(key)]);
if ((idx || idx === 0) && elem) {
// 计算规则：父元素和实际列表高度的百分比，分割成20等份
var transform = "translate(0, -".concat((idx === 0 ? 10 : idx) * 5, "%)");
elem.style.transform = transform;
elem.style.webkitTransform = transform;
}
});
}
}, [
numberArr
]);
var numberEaseStyle = {
transitionDuration: "".concat(duration, "s")
};
useEffect(function() {
timerRef.current = window.setTimeout(function() {
setNumberTransform();
}, delay);
return function() {
window.clearTimeout(timerRef.current);
};
}, [
numberArr,
delay,
setNumberTransform
]);
return /*#__PURE__*/ React.createElement("div", {
className: "".concat(classPrefix, " ").concat(className),
ref: countupRef
}, /*#__PURE__*/ React.createElement("ul", {
className: "".concat(classPrefix, "-list")
}, numberArr.map(function(item, idx) {
return /*#__PURE__*/ React.createElement("li", {
className: "".concat(classPrefix, "-listitem ").concat(!Number.isNaN(Number(item)) ? "".concat(classPrefix, "-listitem-number") : ''),
key: idx
}, !Number.isNaN(Number(item)) ? /*#__PURE__*/ React.createElement("span", {
className: "".concat(classPrefix, "-number"),
style: numberEaseStyle
}, _to_consumable_array(numbers).concat(_to_consumable_array(numbers)).map(function(number, subidx) {
return /*#__PURE__*/ React.createElement("span", {
className: "".concat(classPrefix, "-number-text"),
key: subidx
}, number);
})) : /*#__PURE__*/ React.createElement("span", {
className: "".concat(classPrefix, "-separator")
}, item));
})));
};
CountUp.displayName = 'NutCountUp';