can i create a method ?

sjalife · October 2018

i need to create a method , because i need to do some operations into this method ...so, when i call this method, but how can i create a method and how can i call this method?

Jake_Rosenfeld · October 2018

@sjalife

In FeatureScript, we usually say function instead of method (possibly because there are no objects, but mostly just a style choice). Here is an example of the definition of a helper function in FS:

function timesTwo(num is number) returns number
{
    var numTimesTwo = num * 2;
    return numTimesTwo;
}

I may have missed the point of your question though? Are you wondering how to create a feature (a.k.a. a button in the part studio that changes geometry)? This tutorial may help:
https://cad.onshape.com/FsDoc/tutorials/create-a-slot-feature.html

Happy to answer any more question you may have.

sjalife · October 2018

@Jake_Rosenfeld
yes, now i coulded create a function, but my function returns one string, and i wan to use this string, calling my function that is return a value (String), and according to the value that is returned i do some operation like if(String =="a") { do this} else if (String=="b"} do this.... etc.. how can i call this function inside precondition? for use the value returned and do my operations

Jake_Rosenfeld · October 2018

@sjalife

The precondition of a feature is used to define the UI it presents when a user clicks the button for the feature. Arbitrary functions cannot be called in the precondition, as no FeatureScript is executed when deciding how the dialog should look. The description of how the precondition becomes a feature dialog is described here:
https://cad.onshape.com/FsDoc/uispec.html

Many examples can be found in the standard library; a relatively simple one is the variable feature:
https://cad.onshape.com/documents/12312312345abcabcabcdeff/w/a855e4161c814f2e9ab3698a/e/357eadcd05424ef4a2360e88
Or the shell feature:
https://cad.onshape.com/documents/12312312345abcabcabcdeff/w/a855e4161c814f2e9ab3698a/e/8ca395d9c7db47e5805098d5

If you share a link to a document with the feature you are working on, it may be easer to provide some guidance.

can i create a method ?

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