高情商领导者的自我剖析

The script provided appears to be a JavaScript function designed to handle text overflow in HTML elements. The function is named textOverflow and includes several helper functions for manipulating and checking arrays and iterable objects.

The textOverflow function checks if an HTML element's text content exceeds its visible area and requires truncation. It allows for preserving a specific number of child nodes at the end of the content, determined by the tailNum property in the binding.value object. The function also supports custom HTML to denote the overflow (ellipsis) and can handle a specific number of visible lines through the lineClamp property.

Several internal functions are used to find the point where the text needs to be truncated. The getLeaf function retrieves the deepest nodes in the DOM tree, getFragmentHTML creates a document fragment with the truncated content and overflow indicator, and findLastNode and findLastCharIndex are binary search functions to determine the exact point of truncation within the text.

Additionally, the script includes a computeLineNum function to calculate the number of visible lines in an element and removeAllChild to clear an element's content. The setNewFrag function updates the element with the new truncated content.

Apart from handling text overflow, the script also contains a method __setDesc to set a description in various HTML elements. This function sanitizes the description and sets it according to different display types determined by itemShowType. It also handles special cases such as links to WeChat articles and emojis, and it adjusts the layout for immersive styles.

The script concludes with a conditional block that checks for a non-existent window property to determine whether the description should be set immediately or not. If certain conditions are met, __setDesc is called with various parameters, otherwise, it's assigned to window.__setDesc for later use.

想要了解更多内容？

查看原文：高情商领导者的自我剖析

文章来源：

蒋巍巍的专栏

扫码关注公众号