动态表单手把手教程

The script provided defines several functions to handle arrays and to manipulate the overflow of text content in HTML elements. It includes methods to convert array-like objects to arrays, check for non-iterable instances, and create an array from various types of collections or iterables. The core functionality revolves around the textOverflow function, which applies text truncation logic to an HTML element based on specified conditions such as line clamp count or element height versus scroll height.

The textOverflow function works by determining if an element's content exceeds its container's limit and then iteratively removing nodes or characters until the content fits within the designated space. The final output includes an ellipsis and any specified trailing content. It also provides a means to calculate the number of lines that an element's content spans and dynamically adjusts text size based on the computed font size of the document.

Additionally, the script features functions to clean up HTML content by removing child nodes and appending a new document fragment, as well as to determine the scaling factor based on a dummy element with a known font size. There are also utility functions to replace HTML tag characters with placeholders, determine if a page is an audio page, and manipulate description content based on the item's display type, such as audio, video, or text. The __setDesc function is responsible for setting the description content on the page, considering various types of content display.

In its final section, the script checks if it's not a secondary page load (window.__second_open__), then it sets the description content based on different conditions using the __setDesc function with various parameters such as content encoding flag, item display type, and additional data like super vote ID. The function is then exposed globally for potential reuse.

90%的开发都没搞懂的CI和CD！

了解更多

想要了解更多内容？

查看原文：动态表单手把手教程

文章来源：

江南一点雨

扫码关注公众号