#value of

Each year I make a post about the best posts I think I have for the year that are not in the most popular posts sidebar (on obscurejavascript.tumblr.com as of early January 2019). Since popular doesn't necessarily mean better. The list for 2018 is below:

1. All Objects Have ValueOf This method is available in all objects. It specifies the value of the object when used in numerical operations. For example, the Date object returns the timestamp of the current date so that dates can be subtracted to compare if the time is different and by how much.

2. JavaScripts Console Object (Beyond Logging) JavaScript is generally a very lean language without too much syntactical helpers or much built in functionality. One exception is the console object which provides functionality to track how many times a function is called, time a piece of code and other functions all without using any libraries.

3. Caching Functions Via Memoization If you ensure a functions output is directly determined by its input (referential transparency in Functional Programming), it is easy to cache a functions result after it has been called without custom storage code. Which is very useful to eliminate performance issues on problems like, for example, UI calls that get called on fluid user input like mouse or finger dragging.

4. ES6 Classes Are Just Syntactic Sugar This provides an example of how JS objects were created in the past that could be used as classes and gives a direct translation to what it looks like with the much simpler class syntax.

5. Natural String Sorts In general, doing natural string sorts where capitalization, numbering and so on to make sense to humans is very hard without a library. Fortunately, JS provides this through String.localeCompare which enjoys wide browser support.

Posts of Previous Years

Best Posts Of 2017

Best Posts Of 2016

What am I missing in my code? How to update the value of a variable? [Assembly, MASM]

I’m learning assembly language. I wrote a program in MASM and wanted to prompt users to give me an answer to a math problem. My program works except for one variable is not updated correctly.

Example: 1st-try: User enters: 123 /variable value should be 123 – Program shows the value, 123 2nd-try: User enters: 1/variable value should be 1 – Program shows the value, 1231

Here is some of the…

I am trying to clear the cell if certain conditions are met. But its not working.

UPDATE

Private Sub DataGridView1_CellLeave(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellLeave Dim laspac As Int16 = DataGridView1.Columns("LASPAC").Index If e.ColumnIndex = laspac And…

How do I get a value of a reference type in an Expression?

I have this method:

public void DoSomething<T>(Expression<Func<T, object>> method) { }

If this method is called like this:

DoSomething(c => c.SomeMethod(new TestObject()));

… how do I get the value of the parameter that was passed into SomeMethod()?

If the parameter is a value type, this works:

var methodCall = (MethodCallExpression)method.Body; var parameterValue =…