To add a unit parameter to a function, you can simply include it as one of the parameters in the function declaration. This parameter can be of any data type such as a string, an integer or a float.

For example, in JavaScript:

code
 
 
Copy code
function calculateDistance(distance, unit) {
  if(unit === "km") {
    // perform calculation with kilometers
  } else if(unit === "miles") {
    // perform calculation with miles
  } else {
    return "Invalid unit entered.";
  }
}

In this example, the calculateDistance function takes two parameters: distance and unit. The unit parameter is used to determine which calculation to perform based on whether the unit entered is in kilometers or miles.

em and px are units of measurement used to specify the size of elements on a webpage.

px stands for pixels, and it is a fixed-size unit of measurement that does not change with resizing.

em stands for "em"phasis, and it is a relative unit of measurement that adjusts based on the font-size set for a parent element.

For example, if you set the font-size of a parent element to 16px and you set the font-size of a child element to 1em, the child element will have a font size of 16px because 1em is equal to the font-size of the parent element.

css
 
 
Copy code
p {
  font-size: 16px;
}

span {
  font-size: 0.8em;
}

In this example, the font size of the span element will be 80% of the font size of the p element because 0.8em is equal to 80% of the font-size of the parent element.

You can learn more about em and px units here.

2rem is equivalent to the computed value of font-size of the root element. It is a relative unit of measurement, so different browsers and devices interpret it differently. To calculate the exact number of pixels, use the following equation: px = rem * root font size. For example, if the root font size is 16px, 2rem is equal to 32px (2*16 = 32).

em is a CSS unit used to define the size of an element relative to its parent font-size. It can be expressed as a fixed amount of length, like 20px, or as a fraction of its parent's font-size, such as 1.2em.

Rem stands for "root em" which is a unit of measurement used in CSS (Cascading Style Sheets) to determine the size of a font relative to the size of the root element. It is calculated as a ratio between the font size of the root element and the final font size. For example, if the root element size of 16px and font size of 0.8rem is used, the final font size would end up being 12.8 px. For more information, refer to this article from W3 Schools: https://www.w3schools.com/cssref/css_units.asp

This question requires a code solution. Your code should look like this:

javascript
 
 
Copy code
function isWindy(unit) {
    if (unit > 5) {
      return true;
    }else {
      return false;
    }
}

//test both scenarios:
let metric = isWindy(6); // true
let imperial = isWindy(3); // false

For more information, you can find the reference material on isWindy at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/isWindy.

In many programming languages (such as C, C++, and Python), you can add a unit parameter to a function by including an argument in the function definition. For example, the following Python function definition includes an argument called unit, which can be used to pass a unit to the function.

python
 
 
Copy code
def convert_temp(temperature, unit):
    # Logic to convert temperature from Fahrenheit to Celsius
    return converted_temp

Once the function is defined, you can call the function with a valid unit argument, such as convert_temp(32, 'F').

More information can be found here:

Arguments and Parameters in Python Functions