Difference between revisions of "$true"
m (just added some if-then-else operator references) |
(Added an example) |
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| − | This identifier is the opposite of $false, which are both the result of an [[ | + | This identifier is the opposite of $false, which are both the result of an [[If-Then-Else|if]]-statement and returned by some other identifiers and are both explained in this article. These two identifiers are rarely actually written in a mirc script, but they are always 'working behind the scenes'. |
$true or $false | $true or $false | ||
| Line 9: | Line 9: | ||
Every if-statement is either $true or $false, depending on whether the statement is true or not. So, for example: | Every if-statement is either $true or $false, depending on whether the statement is true or not. So, for example: | ||
| − | if (a [[If-Then-Else#.3D.3D|==]] b) { blah } ;in this case, 'blah' doesn't get executed because the if-statement is $false | + | [[If-Then-Else#|if]] (a [[If-Then-Else#.3D.3D|==]] b) { blah } ;in this case, 'blah' doesn't get executed because the if-statement is $false |
if (3 [[If-Then-Else#.3C|<]] 7) { bleh } ;in this case, 'bleh' gets executed because the if-statement is $true | if (3 [[If-Then-Else#.3C|<]] 7) { bleh } ;in this case, 'bleh' gets executed because the if-statement is $true | ||
if ($true) { bluh } ;in this case, 'bluh' gets executed as $true is always true. | if ($true) { bluh } ;in this case, 'bluh' gets executed as $true is always true. | ||
| − | + | Alot of identifiers are used just to check whether something is true or not, for example [[$islower]] and [[$away]]. And to check that, there's an if-sentence even if it doesn't always look much like it. So actually, the following three lines are exactly the same, but the first one is just a 'shortcut' (and should actually never be used, the middle one is the preferred syntax). | |
if $away do_this | if $away do_this | ||
if ($away) { do_this } | if ($away) { do_this } | ||
if ($away == $true) { do_this } | if ($away == $true) { do_this } | ||
| + | |||
| + | Below is an example how you can create your own $true/$false identifier. | ||
| + | [[alias]] IsMorning { | ||
| + | if ([[$asctime]](H) < 12) { return $true } | ||
| + | [[If-Then-Else#|else]] { [[return]] $false } | ||
| + | } | ||
| + | |||
| + | if ($IsMorning) { [[notice]] [[$chan]] It's Morning!!!! } | ||
[[Category:Other Identifiers]] | [[Category:Other Identifiers]] | ||
Latest revision as of 10:53, 5 December 2005
This identifier is the opposite of $false, which are both the result of an if-statement and returned by some other identifiers and are both explained in this article. These two identifiers are rarely actually written in a mirc script, but they are always 'working behind the scenes'.
$true or $false
To understand the essence of these identifiers, you should first read about if-statements.
Examples
Every if-statement is either $true or $false, depending on whether the statement is true or not. So, for example:
if (a == b) { blah } ;in this case, 'blah' doesn't get executed because the if-statement is $false if (3 < 7) { bleh } ;in this case, 'bleh' gets executed because the if-statement is $true if ($true) { bluh } ;in this case, 'bluh' gets executed as $true is always true.
Alot of identifiers are used just to check whether something is true or not, for example $islower and $away. And to check that, there's an if-sentence even if it doesn't always look much like it. So actually, the following three lines are exactly the same, but the first one is just a 'shortcut' (and should actually never be used, the middle one is the preferred syntax).
if $away do_this
if ($away) { do_this }
if ($away == $true) { do_this }
Below is an example how you can create your own $true/$false identifier.
alias IsMorning { if ($asctime(H) < 12) { return $true } else { return $false } } if ($IsMorning) { notice $chan It's Morning!!!! }
