Opera FAQs, Tips, Tricks & Tweaks

Tips for Opera browser since 2005

Opera address bar as a calculator

Friday, October 28, 2011 12:27:52 PM

, , , , , , ,

Many of us use Google for calculations instead of operating system's built-in calculator. You can perform calculations with JavaScript in the address bar.

Create a new search engine (Alt + P > Search > Add...) with the following code as the address.

javascript:alert(%s);

JavaScript Calculator Search Engine
JavaScript calculator search engine

For example, to calculate (100-32)*5/9, type the following in the address field and press enter to get the answer.

c (100-32)*5/9

[Lifehacker]

Find the CSS code to hide anything using Opera DragonflyPaste and go in new tab with middle click on Opera tab bar

Comments

chuuey Friday, October 28, 2011 12:39:00 PM

Thanks for the tip smile

Charles SchlossChas4 Friday, October 28, 2011 1:10:11 PM

cool

proceeds to make another custom search bigsmile

Abdulaziz Noratabdulaziznorat Friday, October 28, 2011 2:19:13 PM

smile

el_esponjoso Friday, October 28, 2011 3:33:41 PM

Very cool and an excellent tip. Thanks, Tamil.

eonblue Friday, October 28, 2011 3:40:59 PM

Good stuff. Thks Tamil

KarenNerak Friday, October 28, 2011 6:44:56 PM

That is so awesome! banana You rule, Tamil! bigsmile

Andrew Nguyenandrewnguyen Friday, October 28, 2011 8:51:24 PM

banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana banana

(This should be part of Opera's default searches.)

Abhinavdecodedthought Friday, October 28, 2011 9:16:16 PM

pro tip up Tamil up

banana banana banana banana banana banana banana banana banana banana

KarenNerak Friday, October 28, 2011 10:47:04 PM

Ohmaigosh. Tamil is going to wind up going into a banana induced seizure! bigeyes

Pablo MendozaPabloMendoza Friday, October 28, 2011 10:57:22 PM

bigsmile

Tamil Saturday, October 29, 2011 12:46:06 AM

http://www.youtube.com/watch?v=owoeO0hh9P8

KarenNerak Saturday, October 29, 2011 2:30:51 AM

Hahahahaha! lol yes

Tamil Saturday, October 29, 2011 8:28:20 AM

http://files.myopera.com/Tamil/Smilies/LOL.gif -

hundredorzero Saturday, October 29, 2011 7:49:33 PM

so far i have been using google for this.
for example g 2+4

d4rkn1ght Sunday, October 30, 2011 2:34:51 AM

cool up

Mad Scientist (عادل)qlue Sunday, October 30, 2011 8:08:45 AM

bananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabananabanana

Tamil Sunday, October 30, 2011 12:11:19 PM

http://files.myopera.com/Tamil/Smilies/Yahoo.gif -

Tom RondelloFrlmnk Sunday, October 30, 2011 2:29:01 PM

does that work in base5 or do i mean six? spot?

hundredorzero Sunday, October 30, 2011 5:24:58 PM

Tamil how did you find this tip?

Tamil Sunday, October 30, 2011 7:09:48 PM

Did you read the post completely? wink

Sami Serolaserola Monday, October 31, 2011 7:18:17 AM

That's very useful wizard ~~ banana

Tamil Monday, October 31, 2011 9:22:38 AM

http://files.myopera.com/Tamil/Smilies/Drool.gif -

David ChinerkunFoo Monday, October 31, 2011 9:23:30 PM

Mmmmmmm... just "+", "*" and "/". No "2^3" operations.

Opera "Address bar calculator" extension would be welcome bigsmile

Tamil Monday, October 31, 2011 10:27:18 PM

Originally posted by kunFoo:

No "2^3" operations.

jc Math.pow(2,3)

hundredorzero Monday, October 31, 2011 11:29:45 PM

Originally posted by Tamil:

Did you read the post completely?


Yeah i read the post completely. I meant to ask, how did you find out that javascript calculations are possible in Opera?

Tamil Monday, October 31, 2011 11:33:08 PM

Originally posted by hundredorzero:

Yeah i read the post completely.

Nope, see link in last line of the post.

David ChinerkunFoo Tuesday, November 1, 2011 5:55:08 PM

Originally posted by Tamil:

Originally posted by kunFoo:

No "2^3" operations.

jc Math.pow(2,3)


Thanks Tamil p

For such calculations I will still use Google or Wolfram Alpha search engines anyway
whistle

http://www.wolframalpha.com/input/?i=2^3

https://www.google.com/search?q=2%5E3

Dacotah Wednesday, November 2, 2011 8:43:54 PM

cool

banana

The smilie box doesn't open up anywhere. sad

Tamil Wednesday, November 2, 2011 11:58:43 PM

sherlock

Dacotah Thursday, November 3, 2011 2:45:05 AM

Aadil said it's a bug plus the quotes don't work.

Tamil Thursday, November 3, 2011 7:57:56 AM

Okay.

Sami Serolaserola Thursday, November 3, 2011 8:09:22 AM

Originally posted by Dacotah:

The smilie box doesn't open up anywhere.


That's probably the same as reported here http://my.opera.com/community/forums/topic.dml?id=1113422
And then it is a browser bug.

Originally posted by Dacotah:

quotes don't work


But that one must be MyOpera bug: http://my.opera.com/community/forums/topic.dml?id=1140232
I used Tamil's smilie toolbar to add these quotes "semi manually" wink

Dacotah Thursday, November 3, 2011 3:02:22 PM

Tamil banana

Hi Sami smile

Tamil Thursday, November 3, 2011 3:17:55 PM

http://files.myopera.com/Tamil/Smilies/Drool.gif -

Dacotah Thursday, November 3, 2011 7:07:50 PM

happy
party The smilie box works now. bigsmile

hundredorzero Thursday, November 3, 2011 7:59:31 PM

Originally posted by Tamil:

Nope, see link in last line of the post.


umm thanks. smile

SemirAmissemirami Thursday, November 3, 2011 11:33:56 PM

Thanks, Tamil!!!

Blessings...

Jaahquubel Friday, November 4, 2011 1:50:53 PM

banana
Just wanted to give a banana.

Tamil Friday, November 4, 2011 2:00:47 PM

Originally posted by Jaahquubel:

Just wanted to give a banana.

happy

Tamil Sunday, November 6, 2011 1:58:50 PM

http://files.myopera.com/Tamil/Smilies/Yahoo.gif -

СергейSerega124 Sunday, November 13, 2011 12:57:56 PM

Thank you. I did a little changes to address for me:
javascript:alert(%s);

Tamil Sunday, November 13, 2011 1:58:19 PM

smile

Abdulaziz Noratabdulaziznorat Sunday, November 13, 2011 2:47:40 PM

jester

hundredorzero Wednesday, November 16, 2011 3:54:31 AM

http://files.myopera.com/Tamil/Smilies/LOL2.gif -

Eric Carter Innocent Jr.eric-carter Saturday, November 19, 2011 8:40:00 AM

I got opera 11 on pc so I'm gonna do this for my pc right away...:-)

Unregistered user Sunday, June 3, 2012 6:28:06 AM

Ismael Miguel writes: javascript:alert(%s); shows the result in an alert box, no need to change page...

SemirAmissemirami Sunday, June 17, 2012 9:09:09 PM

...hi Tamil!!!

banana banana banana

1 2 Next »

Showing comments 1 - 50 of 61.

How to use Quote function:

  1. Select some text
  2. Click on the Quote link

Write a comment

Comment
(BBcode and HTML is turned off for anonymous user comments.)

If you can't read the words, press the small reload icon.


Smilies

Opera

Opera

Opera Blogs

Softwares (Freeware)

  • Opera

    Opera is a fast and safe web browser.

  • PDF-XChange Viewer

    PDF-XChange Viewer is a faster & fully featured PDF Viewer.

  • Notepad++

    Notepad++ is a source code editor and Notepad replacement, which supports several programming languages.

  • StrokeIt

    StrokeIt is an advanced mouse gesture recognition engine and command processor.

  • VLC media player

    VLC media player is a cross-platform media player which supports a large number of multimedia formats, without the need for additional codecs.

  • Ubuntu

    Ubuntu is a linux-based operating system.

  • Avast Home Edition

    Avast is a complete anti-virus package.

  • TrueCrypt

    TrueCrypt is a on-the-fly encryption (OTFE) program for Microsoft Windows and Linux.

  • AutoHotkey

    AutoHotkey is a free, open-source utility that can automate almost anything by sending keystrokes and mouse clicks.

  • Universal AutoCorrect

    An AutoHotKey script that will automatically correct a predefined list of misspellings.

  • XYplorerFree (Last freeware version)

    XYplorerFree is a multi-tabbed portable file manager for Windows.

  • Total Uninstall (Last freeware version)

    Total Uninstall monitors any changes made to your system during the installation of a new application. It allows you to perform a complete uninstall without having to rely on the supplied Add/Remove program which can leave files or changes behind.

  • Dup Detector

    Dup Detector finds duplicate and near duplicate images.

  • IrfanView

    IrfanView is a very fast, small, compact and innovative graphic viewer for Windows.

  • WordWeb Free

    WordWeb is a one-click English thesaurus and dictionary for Windows that can look up words from in almost any program.

  • Autoruns

    See what programs are configured to startup automatically when your system boots and you login.

  • Process Explorer

    Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more.

  • Process Monitor

    Monitor file system, registry, process, thread and DLL activity in real-time.

  • VirtualBox

    VirtualBox allows you to run an entire operating system inside your current operating system.

  • Revo Uninstaller

    Uninstall programs even if you have problems in uninstalling.

  • ManicTime

    ManicTime is a time-tracking application that records how and when you use your computer and generates useful statistics and reports from the data.

Softwares (Nagware)

  • WinRAR

    WinRAR is a powerful compression tool with many integrated additional functions.

  • Sandboxie

    Sandboxie allows you to run any program but all changes that result from the usage are kept in a sandbox environment, which can then be deleted later.

Softwares (Shareware)

  • XYplorer

    XYplorer is a multi-tabbed portable file manager for Windows, featuring a very powerful file search, versatile preview facilities, a highly customizable interface, and a large array of unique ways to efficiently automate frequently recurring tasks.

  • Beyond Compare

    Beyond Compare is a advanced file and folder comparison utility.