| | |
| | | export const convertListToTree = ( |
| | | data: any[], |
| | | defaultProps = { |
| | | ID: 'ID', |
| | | Children: 'Children', |
| | | ParentID: 'ParentID', |
| | | ID: 'id', |
| | | Children: 'children', |
| | | ParentID: 'parent', |
| | | } |
| | | ) => { |
| | | if (!data || data?.length === 0) return []; |
| | |
| | | callback: (value: T, index?, array?, parent?) => any, |
| | | parent: any = null, |
| | | markParent = false, |
| | | childrenKey = 'Children' |
| | | childrenKey = 'children' |
| | | ) => { |
| | | if (!treeData || treeData.length === 0) return; |
| | | if (!parent) parent = treeData; |
| | |
| | | }, wait); |
| | | }; |
| | | }; |
| | | |
| | | /** |
| | | * 文件大小字节转换为XXX |
| | | * @param size 字节大小 |
| | | * @returns {string|*} |
| | | */ |
| | | export const convertFileSize = (size) => { |
| | | if (!size && size !== 0) return ''; |
| | | if (size < pow1024(1)) return size + ' B'; |
| | | if (size < pow1024(2)) return (size / pow1024(1)).toFixed(2) + ' KB'; |
| | | if (size < pow1024(3)) return (size / pow1024(2)).toFixed(2) + ' MB'; |
| | | if (size < pow1024(4)) return (size / pow1024(3)).toFixed(2) + ' GB'; |
| | | return (size / pow1024(4)).toFixed(2) + ' TB'; |
| | | }; |
| | | // 求次幂 |
| | | function pow1024(num) { |
| | | return Math.pow(1024, num); |
| | | } |
| | | /** |
| | | * |
| | | * @param {*} func 节流函数 |
| | |
| | | |
| | | /** |
| | | * 保留指定精度小数位,且不补零 |
| | | * @param num |
| | | * @param precision |
| | | * @returns |
| | | * @param num |
| | | * @param precision |
| | | * @returns |
| | | */ |
| | | export const toMyFixed = (num, precision) => { |
| | | if (num == null) return ''; |
| | | return num.toFixed(precision).replace(/\.?0+$/, ''); |
| | | }; |
| | | |
| | | |
| | | type GetTextWidthOption = { |
| | | size?: string; |
| | | family?: string; |
| | | }; |
| | | |
| | | export function getTextWidth(text: string, option: GetTextWidthOption) { |
| | | if (!text) return 0; |
| | | const { size = '14px', family = 'Microsoft YaHei' } = option; |
| | | const spanEle = document.createElement('span'); |
| | | document.body.appendChild(spanEle); |
| | | |
| | | spanEle.style.font = 'times new roman'; |
| | | spanEle.style.fontSize = size; |
| | | spanEle.style.height = 'auto'; |
| | | spanEle.style.width = 'auto'; |
| | | spanEle.style.position = 'absolute'; |
| | | spanEle.style.whiteSpace = 'no-wrap'; |
| | | spanEle.innerHTML = text; |
| | | |
| | | const width = spanEle.clientWidth; |
| | | |
| | | document.body.removeChild(spanEle); |
| | | return width; |
| | | } |