Difference between revisions of "$true"
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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 == b) { blah } in this case, 'blah' doesn't get executed because the if-statement is $false | + | 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 (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 $true is always true. | + | if ($true) { bluh } ;in this case, 'bluh' gets executed as $true is always true. |
Quite many identifiers are used just to check whether something is true or not, for example [[$islower]] and [[$away]]. And to check that, there's an if-sentence even if it doesn't always look much like it. So actually, the following three lines are exactly the same, but the first one is just a 'shortcut' (and should actually never be used, the middle one is the preferred syntax). | Quite many identifiers are used just to check whether something is true or not, for example [[$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). | ||
Revision as of 14:29, 10 November 2005
This identifier is the opposite of $false, which are both the result of an If-Then-Else-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.
Quite many 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 }
