Calculator

Calculation commands and tools for VS Code.

Installation

To install Calculator, do the following steps:

1. Open Visual Studio Code
2. Open the Quick Open Palette (By default: Ctrl-P)
3. Type ext install calculator
4. Select the Calculator extension
5. Select Install

Usage

Select a math expression:

The math widget in the status bar will show you the result:

You can also use Calculator commands to modify the text directly:

Most commands operate on every selection / cursor in the editor, so they can be used to evaluate several expressions at once.

Commands

• calculator.evaluate
  • Evaluates the expression, and appends it to the selection.
  • If no selection is present, the space-delimited word surrounding the cursor is used instead.
• calculator.replace
  • Evaluates the expression, and replaces it with the result.
  • If no selection is present, the space-delimited word surrounding the cursor is used instead.
• calculator.count
  • Counts each selection / cursor, and replaces the contents with the number.
• calculator.countFrom
  • Counts each selection / cursor, and replaces the contents with the number, starting from a custom value.
• calculator.showInput
  • Opens an input dialogue that will evaluate anything typed into it. Confirming the dialogue will copy the result to the clipboard.

Configuration

• calculator.countStart (Default: 0)
  • The value to start counting from when using the calculator.count command.
• calculator.disableWidget (Default: false)
  • Disables the calculation widget.
• calculator.humanFormattedOutput (Default: false)
  • If enabled, the output will be formatted in a human-readable way according to the default locale, such as 1,000,000 instead of 1000000.
• calculator.advanced.bypassInputFormatting (Default: false)
  • If enabled, input will not have its newlines removed before evaluation.
• calculator.advanced.decimalPlaces (Default: 14, Minimum: -1)
  • Number of decimal places to format evaluated numbers. This is to avoid floating point precision issues, and is recommended to not be changed. Set to -1 to disable formatting.

Development

• npm run compile compiles the TypeScript sources to out/.
• npm run watch recompiles on change.
• npm run lint lints and checks formatting.
• npm test runs the whole test suite (needs a display; use xvfb-run -a npm test on Linux).
• npm run test:unit runs only the unit tests, without VS Code.
• npm run test:integration runs the integration tests inside a headless VS Code instance.

Other

Powered by Math JS.

Calculator is hosted at GitHub.

Calculator is licensed under the GPLv3.