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JSLint Error Explanations

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ADsafe violation: Wrap the widget in a div

When do I get this error?

JSLint (prior to version 2013-03-18) throws the "ADsafe violation: Wrap the widget in a div" error when the adsafe and fragment options are set to true (they're false by default) and you pass it a fragment of HTML that is not wrapped in a div element. Here's an example:

Why do I get this error?

This error is raised when JSLint encounters code that violates the rules of the ADsafe subset of JavaScript. It is a fatal error that signifies a severe problem with ADsafe code and will have to be fixed before your ADsafe code will execute.

ADsafe widgets must be wrapped in a div element. The ADsafe widget documentation states the following:

The <div> element must have an id. The id must contain only upper case ASCII letters with a trailing _ character.

In a commit on 20th March 2013, HTML, CSS and ADsafe parsing functionality was removed from JSLint. If you rely upon this functionality, you will be unable to upgrade JSLint to a version beyond that date.

James Allardice

This article was written by James Allardice, an enthusiastic young JavaScript developer at Global Personals (we're looking for developers so please apply). He is passionate about writing clean, maintainable JavaScript and uses JSHint every day to help achieve this.

You can follow him on Twitter, fork him on GitHub and find him on Google+.

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