There are 2 definitions of JavaScript in English:

JavaScript1

Syllabification: Ja·va·Script
Pronunciation: /ˈjävəskript, ˈjavə-/

Entry from US English dictionary

noun

trademark
An object-oriented computer programming language commonly used to create interactive effects within web browsers.

Origin

1990s: from Java2 + script1.

Definition of JavaScript in:

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Word of the day vituperate
Pronunciation: vɪˈtjuːpəreɪt
verb
blame or insult (someone) in strong language...

There are 2 definitions of JavaScript in English:

JavaScript2

Line breaks: Java¦Script
Pronunciation: /ˈdʒɑːvəˌskrɪpt
 
/

noun

[mass noun] trademark
An object-oriented computer programming language commonly used to create interactive effects within web browsers.
More example sentences
  • Finally, you can use JavaScript to redirect the browser to a new page depending on whether or not the plug-in was found.
  • There is also JavaScript on the site, notably in some navigational aids.
  • In the case of JavaScript, our application has a common set of function calls used by the web page.

Origin

1990s: from Java2 + script1.

Definition of JavaScript in:

Get more from Oxford Dictionaries

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Word of the day vituperate
Pronunciation: vɪˈtjuːpəreɪt
verb
blame or insult (someone) in strong language...