Ai01

// js浮点数精确计算。需要在支持static method和class的js环境中运行
// 可以拆分为4个方法（在不支持class和static method）的环境中

// 需要继续完善的是如果x,y中存在几十位的小数那么可能超过安全数字
class Calculate {
  // x,y是运算数字，n是精度
  static add(x, y, n) {
    const _arg1 = x.toString();
    const _arg2 = y.toString();
    const arg1Arr = _arg1.split('.');

Ai01

//get
fetch('url').then((res)=>{
  if(res.ok){
    res.json.then((data)=>{
      console.log(data);
    })
  }
}).catch((err)=>{
   console.log(err);
})

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const arr = {
  children: [1,2,3]
};
arr.childrenGroup = [];
arr.children.reduce((r, e, index) => {
  const lenghtOfChildren = qcSort.children.length;
  if (index % 2 === 1) {
    arr.childrenGroup.push([r,e]);
  } else if (lenghtOfChildren % 2 === 1 && index === lenghtOfChildren - 1) {
    arr.childrenGroup.push([e]);

Ai01

// 将平级数据变为树结构
const arr = [{
	id:1,
  parent: null,
},{
	id:2,
  parent: null,
},{
	id: 3,
  parent: {id:1}

Ai01

const getVariableType = (v) => {
  const TYPES = {
    undefined: 'undefined',
    number: 'number',
    boolean: 'boolean',
    string: 'string',
    '[object Function]': 'function',
    '[object RegExp]': 'regexp',
    '[object Array]': 'array',
    '[object Date]': 'date',

Ai01

import React, { Component } from 'react';
import PropTypes from 'porp-types';

class Template extends Component {
  state = {}
  
  render(){
    return (<div>template</div>);
  }
}

Ai01

拖拽实现2

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License.

Ai01

拖拽放置

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License.

Ai01

拖拽实现

A Pen by 柏 on CodePen.

License.