Parentheses - Revision history

JoeStrout: Noted that parens are only needed in a function call if it takes parameters

2022-01-01T13:27:27Z

Noted that parens are only needed in a function call if it takes parameters

JoeStrout: /* Examples */

2020-12-15T20:09:48Z

Examples

JoeStrout: added new example

2020-12-15T20:07:58Z

added new example

JoeStrout: added example of omitting parentheses on a function call statement

2020-12-15T13:32:13Z

added example of omitting parentheses on a function call statement

JoeStrout at 20:48, 30 March 2020

2020-03-30T20:48:25Z

JoeStrout: /* Example */

2020-03-30T20:48:12Z

Example

JoeStrout at 21:06, 20 February 2020

2020-02-20T21:06:20Z

JoeStrout at 14:39, 20 February 2020

2020-02-20T14:39:25Z

JoeStrout: Created page with "Parentheses in MiniScript have only three uses: 1. Use them to group math operations in the order you want them, just as in algebra. x = (2+4)*7..."

2020-02-20T14:39:10Z

Created page with "Parentheses in MiniScript have only three uses: 1. Use them to group math operations in the order you want them, just as in algebra. <source lang="miniscript">x = (2+4)*7..."

New page

Parentheses in MiniScript have only three uses:

1. Use them to group math operations in the order you want them, just as in algebra.

<source lang="miniscript">x = (2+4)*7 // this is different from 2+4*7</source>

2. Use them around the arguments in a function call, except when the function call is the entire statement.

<source lang="miniscript">print cos(0) // parens needed; cannot just say: print cos 0</source>

3. Use them when declaring a [[function]].

Since other languages often require parentheses in many other places, it’s worth pointing out where parentheses are not used in MiniScript. First, don’t put parentheses around the condition of an [[if]] or [[while]] statement. Second, parentheses are not needed (and should be omitted) when calling a [[function]] without any arguments. For example, there is a [[time]] function that gets the number of seconds since the program began. It doesn’t need any arguments, so you can invoke it without parentheses.

<source lang="miniscript">x = time</source>

Finally, as mentioned above, you don't need parentheses around the arguments of a function that is the very first thing on a statement.

== Example ==

The following example prints ten numbers, waiting one second each, and then prints a message. Notice how [[print]] and [[wait]] are called without any parentheses. But the [[range]] call, because it has arguments and is used as part of a larger statement, parentheses are needed.

<source lang="miniscript">for i in range(10, 1)
print i
wait
end for
print "Boom!"</source>

@@ Line 9: / Line 9: @@
 <source lang="miniscript">print cos(0)   // parens needed; cannot just say: print cos 0</source>
-. Use them when declaring a [[function]].
+. Use them when declaring a [[function]].  (As of MiniScript 1.5.1, these are needed only if the function takes parameters.)
 And that's it.

@@ Line 21: / Line 21: @@
 == Examples ==
-The following example prints ten numbers, waiting one second each, and then prints a message.  Notice how [[print]] and [[wait]] are called without any parentheses.  But on the [[range]] call, because it has arguments and is used as part of a larger statement, parentheses are needed.
+The following example prints ten numbers, waiting one second each, and then prints a message.  Notice how [[print]], [[rnd]], and [[wait]] are called without any parentheses.  But on the [[range]] call, because it has arguments and is used as part of a larger statement, parentheses are needed.
 <source lang="miniscript">for i in range(10, 1)
-   print i
+   print i * rnd
    wait
 end for

@@ Line 19: / Line 19: @@
 Finally, as mentioned above, you don't need parentheses around the arguments of a function that is the very first thing on a statement.  A common example is the [[print]] function; instead of <c>print(42)</c>, simply write <c>print 42</c>.
-== Example ==
+== Examples ==
 The following example prints ten numbers, waiting one second each, and then prints a message.  Notice how [[print]] and [[wait]] are called without any parentheses.  But on the [[range]] call, because it has arguments and is used as part of a larger statement, parentheses are needed.
@@ Line 28: / Line 28: @@
 end for
 print "Boom!"</source>
 [[Category:Language]]
 [[Category:Conventions]]

← Older revision		Revision as of 20:48, 30 March 2020
Line 10:		Line 10:

	3. Use them when declaring a [[function]].		3. Use them when declaring a [[function]].
		+
		+	And that's it.

	Since other languages often require parentheses in many other places, it’s worth pointing out where parentheses are not used in MiniScript. First, don’t put parentheses around the condition of an [[if]] or [[while]] statement. Second, parentheses are not needed (and should be omitted) when calling a [[function]] without any arguments. For example, there is a [[time]] function that gets the number of seconds since the program began. It doesn’t need any arguments, so you can invoke it without parentheses.		Since other languages often require parentheses in many other places, it’s worth pointing out where parentheses are not used in MiniScript. First, don’t put parentheses around the condition of an [[if]] or [[while]] statement. Second, parentheses are not needed (and should be omitted) when calling a [[function]] without any arguments. For example, there is a [[time]] function that gets the number of seconds since the program began. It doesn’t need any arguments, so you can invoke it without parentheses.

← Older revision		Revision as of 21:06, 20 February 2020
Line 28:		Line 28:

	[[Category:Language]]		[[Category:Language]]
		+	[[Category:Conventions]]

← Older revision		Revision as of 14:39, 20 February 2020
Line 26:		Line 26:
	end for		end for
	print "Boom!"</source>		print "Boom!"</source>
		+
		+	[[Category:Language]]