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hotgo-web/src/components/_util/util.js

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+/**
+ * components util
+ */
+
+/**
+ * 清理空值，对象
+ * @param children
+ * @returns {*[]}
+ */
+export function filterEmpty (children = []) {
+  return children.filter(c => c.tag || (c.text && c.text.trim() !== ''))
+}
+
+/**
+ * 获取字符串长度，英文字符 长度1，中文字符长度2
+ * @param {*} str
+ */
+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)
+
+/**
+ * 截取字符串，根据 maxLength 截取后返回
+ * @param {*} str
+ * @param {*} maxLength
+ */
+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
+  }, '')
+}