| commit | author | age | ||
| 9bcb19 | 1 | /** |
| I | 2 | * components util |
| 3 | */ | |
| 4 | ||
| 5 | /** | |
| 6 | * 清理空值，对象 | |
| 7 | * @param children | |
| 8 | * @returns {*[]} | |
| 9 | */ | |
| 10 | export function filterEmpty (children = []) { | |
| 11 | return children.filter(c => c.tag || (c.text && c.text.trim() !== '')) | |
| 12 | } | |
| 13 | ||
| 14 | /** | |
| 15 | * 获取字符串长度，英文字符 长度1，中文字符长度2 | |
| 16 | * @param {*} str | |
| 17 | */ | |
| 18 | export const getStrFullLength = (str = '') => | |
| 19 | str.split('').reduce((pre, cur) => { | |
| 20 | const charCode = cur.charCodeAt(0) | |
| 21 | if (charCode >= 0 && charCode <= 128) { | |
| 22 | return pre + 1 | |
| 23 | } | |
| 24 | return pre + 2 | |
| 25 | }, 0) | |
| 26 | ||
| 27 | /** | |
| 28 | * 截取字符串，根据 maxLength 截取后返回 | |
| 29 | * @param {*} str | |
| 30 | * @param {*} maxLength | |
| 31 | */ | |
| 32 | export const cutStrByFullLength = (str = '', maxLength) => { | |
| 33 | let showLength = 0 | |
| 34 | return str.split('').reduce((pre, cur) => { | |
| 35 | const charCode = cur.charCodeAt(0) | |
| 36 | if (charCode >= 0 && charCode <= 128) { | |
| 37 | showLength += 1 | |
| 38 | } else { | |
| 39 | showLength += 2 | |
| 40 | } | |
| 41 | if (showLength <= maxLength) { | |
| 42 | return pre + cur | |
| 43 | } | |
| 44 | return pre | |
| 45 | }, '') | |
| 46 | } | |
