or

Returns true or false depending on whether one code-block out of multiple ones supplied is successful or unsuccessful.

Description

Returns a boolean results (true or false) depending on whether any of the code-blocks included as parameters are successful or not.

Usage

or: { code-block } { code-block } -> `<stdout>`

!or: { code-block } { code-block } -> `<stdout>`

or supports as many or as few code-blocks as you wish.

Examples

if { or { = 1+1==2 } { = 2+2==5 } { = 3+3==6 } } then {
    out: At least one of those equations are correct
}

Detail

or does not set the exit number on failure so it is safe to use inside a try or trypipe block.

If or is prefixed by a bang (!or) then it returns true when one or more code-blocks are unsuccessful (ie the opposite of or).

Code-Block Testing

• or only executes code-blocks up until one of the code-blocks is successful then it exits the function and returns true.

• !or only executes code-blocks while the code-blocks are successful. Once one is unsuccessful !or exits and returns true (ie it nots every code-block).

Synonyms

• or
• !or

See Also

• ! (not): Reads the STDIN and exit number from previous process and not's it's condition
• and: Returns true or false depending on whether multiple conditions are met
• catch: Handles the exception code raised by try or trypipe
• false: Returns a false value
• if: Conditional statement to execute different blocks of code depending on the result of the condition
• true: Returns a true value
• try: Handles errors inside a block of code
• trypipe: Checks state of each function in a pipeline and exits block on error