"Summary" of the key issues encountered, the discovery of flexible skills ~ long-term update

1. The jquery selector, $ ("Div#ids") selects all id=ids elements that are labeled Div, while $ ("#ids") selects the first element of the id=ids that is encountered. Choose a different selector may cause you unexpected bug, and difficult to find, such as jQueryUI pop-up window, your page has two of the same ID div, you choose the first way to pop up two windows, and the second will only pop the first one.
2. JS code too many can use the introduction of namespaces to avoid duplication, specifically, the use of $, the principle is not understood, it may be similar to C # namespace bar, first written in this.
3. When writing a module, the process is first drawn on paper, recursively differentiated into smaller, directly-capable modules, and then the pseudo-code is implemented one step at a time.

"Summary" of the key issues encountered, the discovery of flexible skills ~ long-term update