Java script sample. What does this mean?

Please can someone tell me what javascript means? My husband had local slags in his iPhone history and when I asked him he said it was an advert pop up. Now before local slags was listed it said below it on the history, javascript sample. What is this? Does this mean that because this was listed before that it was a pop up?

JavaScript means an object-oriented computer programming language commonly used to create interactive effects within web browsers. It's the source of the webpage.
Not really sure what it means by JavaScript next to the link on his history, but i'm sure it's probably just a advert or pop up.

Java is a object oriented programming language and javascript is a part of java for developing web base program.

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