RMMV compare variable using select item command

[Charles2020]

Hi guys

I have a question

I used the select item command to assign to variable 10 and wanted to compare if the variable is item A (number 3)

I tried below but did not work

If $dataItems[$gameVariables.value(10)] == 3 else ....
If $gameVariables.value(10) == 3 else ...

Any suggestions?

thanks

 

[Frostorm]

Try 3 "=" instead of 2.

 

[Andar]

why use javascript after an event command? a conditional branch on the variable directly without script would be easier.

that said, your mistake is using the wrong operator. comparison in javascript is === (three, not two equals)

Try 1 "=" instead of 2.

one equal is assignment, that won't work either

 

[Frostorm]

why use javascript after an event command? a conditional branch on the variable directly without script would be easier.

that said, your mistake is using the wrong operator. comparison in javascript is === (three, not two equals)

one equal is assignment, that won't work either

Ah ur right, I had a brain fart lol, I'll edit that. This should be what @Andar mentioned:
(eventing instead of script)


But regarding "="...I thought "==" & "===" were both for comparisons, the former being soft and the latter being hard. I sometimes use "==" instead of "===" when it's not necessary and works fine. It's only when the values are different types does it matter, right?

 

[caethyril]

Yea, I'd just use event commands here~

For a pure-script approach (e.g. part of a Script command) you need brackets around the condition:

if ($gameVariables.value(10) === 3) {
  // stuff goes here
}

More details here:

if...else

The if statement executes a statement if a specified condition is truthy. If the condition is falsy, another statement can be executed.

developer.mozilla.org

Details on comparison types here:

Equality comparisons and sameness

There are four equality algorithms in ES2015:

developer.mozilla.org

 

[Charles2020]

But does this apply to item number ?

Would it be something like

If ($dataItems[$gameVariables.value(10)] === 3 )
{ ...}
else ....

 

[caethyril]

If ($dataItems[$gameVariables.value(10)] === 3 )
{ ...}
else ...

$dataItems is an array of objects, not numbers. I don't think it's possible for the check you've written to be true unless the database is malformed.

(Also, note that JavaScript is case-sensitive: it's if, not If.)

The Select Item command returns the ID of the selected item, i.e. a number. Try it and see for yourself!