Rule Definition
Using the Document.all collection is slow when retrieving its different objects into HTML, HTM, JSP, JS files as it collects - and loads in memory - all items.
Remediation
E.g.: Rather use: var temp = document.foo temp.innerText = "Hello" Instead of document.all['foo'].innerText = "Hello"
Related Technologies
JEE
Technical Criterion
Efficiency - Memory, Network and Disk Space Management
About CAST Appmarq
CAST Appmarq is by far the biggest repository of data about real IT systems. It's built on thousands of analyzed applications, made of 35 different technologies, by over 300 business organizations across major verticals. It provides IT Leaders with factual key analytics to let them know if their applications are on track.