Development
#33
Cache objects repeatedly accessed by JavaScript
Accessing the DOM (Document Object Model) drains processor resources (CPU). Therefore, when you reference the same DOM element several times in JavaScript, store its reference within a variable to avoid re-parsing the DOM for the same element.
Development
#23
Delete image tags with empty SRC attributes
If there is an image tag with an empty src attribute,
the browser will call the directory in which the page is located,
generating unnecessary, additional HTTP requests.
