The nuts and bolts of JavaScript

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Today we will look into a problem that many a Servicenow consultant has lost some hours on solving. To prevent new consultants running into this problem, but also for the ones that solved it but didn’t fully comprehend the solution, here is a detailed explanation of what is going on in the nuts and bolts of JavaScript.
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Frequent display issues with (related) lists

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I am working on the service desk and on regular base we are getting issues about a particular user having problems with viewing records in a (related) list. In some situations a part of the list is not displayed, but we also get issues where a security constraint error message appears, while the issue is not directly caused by the security rules that were defined on the list. In this blog I will describe some of these issues and of course, I will also provide some steps you could check in case you may face a similar issue.
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Script execution flow

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About two years ago I followed the ServiceNow Scripting training. The training provides information about most common places were different types of scripts are located in ServiceNow. As more or less a beginner with ServiceNow at that moment, I heard a lot of different places where I can create or find scripts. Some of these scripts can be ordered with a number in which sequence they have to be executed, for example business rules.
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