Browse Definitions :
Definition

Yoda conditions (Yoda notation)

Yoda conditions, also known as Yoda notation, is a way of formatting code that reverses the standard order of an equality conditional statement. The formatting style is named for the Star Wars character whose syntax typically involves an object-subject-verb order instead of the standard English subject-verb-object order: "Patience you must have" for example, rather than "You must have patience."

In programming, Yoda conditions involve swapping the positions of the variable with that of the constant, function or literal in an equality conditional expression.

On Know The Code, Tonya Mork offers the following examples:

Typical conditional structure      Yoda conditions
1   if ( $post_type == 'post' ) {
2   // do stuff
3   }
1   if ( 'post' == $post_type ) {
2   // do stuff
3   }

That format forces an error in the case of certain typos. If, for example, the programmer types an assignment operator (=) in the statement when they intend to type the equality operator (==), Yoda format will force a syntax error. The error prevents the code from running and, because of the error, possibly causing unintended behavior.

According to Tonya Mark, preventing unintended behaviors in that situation is the only advantage to using Yoda conditions and the only reason to use it. The main disadvantage to Yoga conditions is the fact that they make the code more cumbersome to read and make code review more difficult than necessary.

This was last updated in November 2017

Continue Reading About Yoda conditions (Yoda notation)

SearchCompliance
  • pure risk

    Pure risk refers to risks that are beyond human control and result in a loss or no loss with no possibility of financial gain.

  • risk reporting

    Risk reporting is a method of identifying risks tied to or potentially impacting an organization's business processes.

  • risk avoidance

    Risk avoidance is the elimination of hazards, activities and exposures that can negatively affect an organization and its assets.

SearchSecurity
  • script kiddie

    Script kiddie is a derogative term that computer hackers coined to refer to immature, but often just as dangerous, exploiters of ...

  • cipher

    In cryptography, a cipher is an algorithm for encrypting and decrypting data.

  • What is risk analysis?

    Risk analysis is the process of identifying and analyzing potential issues that could negatively impact key business initiatives ...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • fault-tolerant

    Fault-tolerant technology is a capability of a computer system, electronic system or network to deliver uninterrupted service, ...

  • synchronous replication

    Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so ...

SearchStorage
  • gigabyte (GB)

    A gigabyte (GB) -- pronounced with two hard Gs -- is a unit of data storage capacity that is roughly equivalent to 1 billion ...

  • MRAM (magnetoresistive random access memory)

    MRAM (magnetoresistive random access memory) is a method of storing data bits using magnetic states instead of the electrical ...

  • storage volume

    A storage volume is an identifiable unit of data storage. It can be a removable hard disk, but it does not have to be a unit that...

Close