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Units Converter

A library for unit conversions.

Этот скрипт недоступен для установки пользователем. Он является библиотекой, которая подключается к другим скриптам мета-ключом // @require https://update.greasyfork.org/scripts/519002/1492624/Units%20Converter.js

Автор
hacker09
Версия
1
Создан
27.11.2024
Обновлён
27.11.2024
Лицензия
Недоступно

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To always have the latest version use:

// @require      https://update.greasyfork.org/scripts/519002/Units%20Converter.js

Units Supported

The script supports 27 units of measurements that are:

  • Inches
  • Centimeters
  • Meters
  • Feet
  • Kilograms
  • Pounds
  • Ounces
  • Grams
  • Fluid ounces
  • Kilometers per hour
  • Miles per hour
  • °C
  • °F
  • Milliliters
  • Liters
  • Gallons
  • Yards
  • Millimeters
  • Kilometers
  • Miles
  • Kilowatts
  • Mechanical HorsePower
  • Miles per Gallon
  • Liters per 100 Kilometers
  • Liquid Quarts
  • Foot-Pounds
  • Newton-Meters

The conversions are:

Conversion Example Input Example Output
Inches ⇄ Centimeters 72in, 72″ 182.88 cm
Millimeters ➜ Inches 50mm 1.97in
Meters ⇄ Feet 6.50 ft 1.98 m
Yards ➜ Meters 239 yd 218.46 m
Ounces ⇄ Grams 1.76 oz 49.90 g
Kilometers ⇄ Miles 60mi 96.54 km
Kilometers per hour ⇄ Miles per hour 62.14mph 99.98 km/h
°F ⇄ °C 39°C 102.20°F
Milliliters ⇄ Fluid ounces 49.98 ml 1.69 fl
Liters ⇄ Gallons 2.06 gal 7.80 l
Kilowatts ⇄ Mechanical HorsePower 700kW 938.70 mhp
Miles per Gallon ⇄ Liters per 100 Kilometers 33.6mpg 7l/100km
Liquid Quarts ⇄ Liters 4 qt 3.78 l
Foot-Pounds ⇄ Newton-Meters 250lb ft 338.95 N·m

Unit Conversion Library Documentation

Overview

This library provides a simple framework to convert units of measurement for the script https://greasyfork.org/en/scripts/419825. It supports various unit types (e.g., length, weight, volume, temperature) and handles conversions with single or compound values.

To see the latest const Units regex and a real usage scenario check https://greasyfork.org/en/scripts/419825.

Features

  1. Unit Conversion: Converts a numeric value from one unit to another.
  2. Compound Conversions: Handles cases with two values (e.g., "10x20 inches").
  3. Exponential Operations: Supports calculations like powers (e.g., "5^3").
  4. Unit Recognition: Uses a regex pattern to identify units and values from text input.

Usage

Example Input

"150 pounds" → Outputs: "68.03 kg"
"10x20 inches" → Outputs: "25.40 x 50.80 cm"
"5^3" → Outputs: "125 power"

Main Functions

  1. Regex Matching for Units

    const UnitType = "150 pounds".match(Units)[3].toLowerCase(); // Extracts the unit type

  2. Value Extraction

    const Units = new RegExp(
/^[ \t\xA0]*(-?\d+(?:[., ]\d+)?)(?:[ \t\xA0]*x[ \t\xA0]*(-?\d+(?:[., ]\d+)?))?[ \t\xA0]*
(in|inch|inches|"|”|″|cm|cms|centimeters? \ |m|mt|mts|meters?|ft|kg|lbs?|pounds?|kilograms?|ounces?|
g|ozs?|fl oz|fl oz (us)|fluid ounces?|kphs?|km\/h|kilometers per hours?|mhp|mphs?|meters per hours?|
(?:°\s?|º\s?|)(?:degrees?\s+)?(?:celsius|fahrenheit|[CF])|km\/hs?|ml|milliliters?|l|liters?|litres?|
gal|gallons?|yards?|yd|Millimeter|millimetre|kilometers?|mi|mm|miles?|km|ft|fl|feets?|grams?|kilowatts?|
kws?|brake horsepower|mechanical horsepower|hps?|bhps?|miles per gallons?|mpgs?|liters per 100 kilometers?|
lt?\/100km|liquid quarts?|lqs?|qt|foot-? ?pounds?|ft-?lbs?|lb fts?|newton-? ?meters?|n·?m|\^\d+)
[ \t\xA0]*(?:\(\w+\)[ \t\xA0]*)?$/i
);

    const UnitValue = "150 pounds".match(Units)[1].replaceAll(',', '.'); // Extracts numeric value
const SecondUnitValue = "150 pounds".match(Units)[2]?.replaceAll(',', '.') || 0; // Extracts second value if present

  3. Value Conversion

    const convertValue = (value, unitType) => {
   const { factor, convert } = window.UConv[unitType] || {};
   return convert ? convert(value) : value * factor; // Converts value using factor or custom function
};

  4. New Unit Detection

    const NewUnit = window.UConv[UnitType]?.unit || UnitType; // Detects target unit

  5. Final Conversion Output

    const ConvertedUnit = `${convertValue(parseFloat(UnitValue), UnitType).toFixed(2)}${SecondUnitValue != 0 ? ` x ${convertValue(parseFloat(
SecondUnitValue), UnitType).toFixed(2)}` : ''}`; // Formats output

  6. Special Cases

    const ConvertedUnit = "5^3".match(/\^(\d+\.?\d*)/) 
   ? (NewUnit = 'power', Math.pow(parseFloat(UnitValue), parseFloat("5^3".match(/\^(\d+\.?\d*)/)[1]))) 
   : ConvertedUnit; // Handles powers

  7. Display Conversion

    ShowConvertion('Units', NewUnit, ConvertedUnit); // Displays result

Adding New Units

To add new units, modify the addConversion function in the UConv library:

addConversion(['unit1', 'unit2'], 'targetUnit', conversionFactor, optionalConvertFunction);

Example:

addConversion(['pound', 'lb'], 'kg', 0.453592); // Adds "pound" conversion to kilograms

How It Works

  1. Input Parsing: Uses regex to extract unit type and numeric values from text input.
  2. Conversion: Fetches the appropriate conversion factor or custom function from UConv.
  3. Output: Returns the converted value in the desired format, supporting both compound and exponential cases.