StringUtil.js
829 Bytes
/**
* 获取字符串的长度ascii长度为1 中文长度为2
* @param str
* @returns {number}
*/
export const getStrFullLength = (str = '') =>
str.split('').reduce((pre, cur) => {
const charCode = cur.charCodeAt(0)
if (charCode >= 0 && charCode <= 128) {
return pre + 1
}
return pre + 2
}, 0)
/**
* 给定一个字符串和一个长度,将此字符串按指定长度截取
* @param str
* @param maxLength
* @returns {string}
*/
export const cutStrByFullLength = (str = '', maxLength) => {
let showLength = 0
return str.split('').reduce((pre, cur) => {
const charCode = cur.charCodeAt(0)
if (charCode >= 0 && charCode <= 128) {
showLength += 1
} else {
showLength += 2
}
if (showLength <= maxLength) {
return pre + cur
}
return pre
}, '')
}