How do you comment out a block of code in Ruby?

How do you comment out multiple lines of code in Ruby?

A multi-line comment begins with the =begin token and ends with the =end token. These tokens should start at the beginning of the line and be the only thing on the line. Anything between these two tokens is ignored by the Ruby interpreter. lines are ignored by the Ruby interpreter.

How do you comment an entire block of code?

Press Ctrl + /

  1. Select the required block of code.
  2. Press Ctrl + Shift + / The beginning (/*) and ending (*/) characters will be added in the appropriate places in order to mark the selected block as a comment.

How do you comment in Ruby?

Comments in Ruby begin with a hash mark ( # ) and continue to the end of the line, like this:

  1. # This is a comment in Ruby. …
  2. # Display a prompt to the user puts “Please enter your name.” # Save the input they type and remove the last character (the enter keypress) name = gets.

How do you comment out in HTML?

HTML comment Tag: Main Tips

  1. The <! — –> is an HTML comment tag.
  2. To comment out in HTML, insert information between <! — and –> tags (browsers won’t show these notes).
  3. Commenting in HTML allows developers to leave notes about their code, its functionality or to indicate necessary changes for the future.
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How do I comment in HTML ERB?

<%# %> is an ERB comment: the dangling = makes no difference, and can be left in. This is what I use to comment out ERB.

How do you comment out multiple lines in code block?

To block comment /* */ code:

  1. In the C/C++ editor, select multiple line(s) of code to comment out.
  2. To comment out multiple code lines right-click and select Source > Add Block Comment. ( CTRL+SHIFT+/ )
  3. To uncomment multiple code lines right-click and select Source > Remove Block Comment. ( CTRL+SHIFT+ )

How do you comment out a block of code in Jupyter notebook?

To comment out a block of code –

Next, on a Windows computer, we need to press the ctrl + / key combination to comment out the highlighted portion of the code.

How do you comment in redshift?

You can comment out or uncomment a single line of code in an SQL statement, multiple adjacent lines of code, a complete SQL statement, or multiple adjacent SQL statements. The syntax for a comment in a line of SQL code is a double hyphen ( — ) at the beginning of the line.

How do you write if else in Ruby?

Ruby if…else Statement

The values false and nil are false, and everything else are true. Notice Ruby uses elsif, not else if nor elif. Executes code if the conditional is true. If the conditional is not true, code specified in the else clause is executed.

How do you comment multiple lines in rails?

Despite the existence of =begin and =end , the normal and a more correct way to comment is to use # ‘s on each line.

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