To remember: p = print, pp = pretty print.
What is PP method?
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What does P return in Ruby?
p returns the object you pass to it.
What is the difference between puts and P in Ruby?
While the print method allows you to print information in the same line even multiple times, the puts method adds a new line at the end of the object. On the other hand, p is useful when you are trying to understand what your code does, e.g. when you are trying to figure out a certain error.
How do you print text in Ruby?
To display a string in your program, you can use the print method: print “Let’s print out this string.” The print method displays the string exactly as written.
What is PP and how it is prepared?
Polypropylene is made from the polymerization of propylene gas in the presence of a catalyst system, usually Ziegler-Natta or metallocene catalyst. … They are taking place either in a gas-phase (fluidized bed or stirred reactor) or a liquid-phase process (slurry or solution).
What monomers make up polypropylene?
Polypropylene is a tough, rigid and crystalline thermoplastic produced from propene (or propylene) monomer. It is a linear hydrocarbon resin. The chemical formula of polypropylene is (C3H6)n. PP is among the cheapest plastics available today.
How do you write Hello World in Ruby?
PS: Hello world sample
- install ruby.
- create a new folder an inside create a file “hello.rb”
- open the file and add the following code: puts ‘Hello world’
- close and save the file.
- now open a terminal, console, etc go to your ruby file folder path and run the following command: ruby hello.rb.
- that will print on your console:
What is pretty print Ruby?
This class implements a pretty printing algorithm. It finds line breaks and nice indentations for grouped structure. By default, the class assumes that primitive elements are strings and each byte in the strings have single column in width. PrettyPrint#breakable. …
How do you return two values in Ruby?
Technically Ruby doesn’t return two values. It can return one array which in turn gets assigned to two variables.
Can you make a lot of money selling puts?
Limited Potential Profits
When you sell a put, the buyer pays you an option premium. The payment you receive is the maximum profit you can earn from the transaction. Other options strategies and investing strategies have much higher profit potential than selling puts.
How do you concatenate in Ruby?
Ruby | String concat Method
- Parameters: This method can take the string object and normal string as the parameters. If it will take integer then this method will convert them into the character.
- Returns: This method returns the concatenated string as a result.
How do I start a new line in Ruby?
We can also use “n” ( newline character ) to print a new line whenever we want as used in most of the programming languages.
What is Echo in Ruby?
The echo method controls whether the eval method displays output from R and, if echo is enabled, whether messages, warnings, and errors from stderr are also displayed.
What is string in Ruby?
In Ruby, string is a sequence of one or more characters. It may consist of numbers, letters, or symbols. Here strings are the objects, and apart from other languages, strings are mutable, i.e. strings can be changed in place instead of creating new strings. … Also, the user can store the string into some variable.
What IDE should I use for Ruby?
Best Ruby IDE Tools in 2018
|RubyMine||Windows, Linux, macOS, FreeBSD, OpenBSD, Solaris||Proprietary|
|Aptana Studio||Windows, Linux, macOS, FreeBSD, JVM, Solaris||GPL|
|Selenium||Windows, Linux, macOS||Apache 2.0|