Change style basedOn

[Johnwhite]

Hi experts,

How to change my paragraphs style basedOn?

my script as below, but not working

var doc = app.activeDocument;  
var paraStyles = doc.allParagraphStyles;
var basicParagraphStyle1 = doc.paragraphStyles("01 Body");
var basicParagraphStyle2 = doc.paragraphStyles("06 Notes");
var paraStyles = doc.allParagraphStyles;
        for(var n=0; n<paraStyles.length; n++)     
        {
            if(paraStyles.name.match(/03|04|05|06|07|08|09|10|11|12|13|14|15|16/g)) {
                paraStyles.basedOnStyle == basicParagraphStyle1;
            } 
            else if(paraStyles.name.match(/17|18|19|20|21|22|23|24|25|26|27|28|29|30/g)) {
                paraStyles.basedOnStyle == basicParagraphStyle2;
            } 
    }

Could someone please give me some opinions please.

Thanks

Regard

John

[Sudha_K]

Hi,

     Please use the below code.

	var doc = app.activeDocument;
	var paraStyles = doc.allParagraphStyles;
	var basicParagraphStyle1 = doc.paragraphStyles.item("01 Body");
	var basicParagraphStyle2 = doc.paragraphStyles.item("06 Notes");
	var paraStyles = doc.allParagraphStyles;
	for(var n=0; n<paraStyles.length; n++)
	{
	if(paraStyles.name.match(/03|04|05|06|07|08|09|10|11|12|13|14|15|16/g)) {
	paraStyles.basedOn = basicParagraphStyle1;
	}
	else if(paraStyles.name.match(/17|18|19|20|21|22|23|24|25|26|27|28|29|30/g)) {
	paraStyles.basedOn = basicParagraphStyle2;
	}
	}

     When assigning value to the variable should not use "==".  "==" should be used in condition case only.

[Manan Joshi · Accepted solution]

Hi John,

You need to look at the object model for the name of the properties you are trying to set. A good place to start exploring objects and their methods/properties is

https://www.indesignjs.de/extendscriptAPI/indesign-latest/#about.html

Other older version of the documentation can be found at in

https://www.indesignjs.de/extendscriptAPI/

Now with regards to you code in addition to the rectifications done by Sudha K in your code i have some more points to share, look at comments in the code below

var doc = app.activeDocument;   
var paraStyles = doc.allParagraphStyles; 
var basicParagraphStyle1 = doc.paragraphStyles.item("01 Body"); 
var basicParagraphStyle2 = doc.paragraphStyles.item("06 Notes"); 
//You need to test if the pstyles you got above are valid or not, what if these styles did not exist in the document
if(!basicParagraphStyle1.isValid)
{
    alert("Style 01 Body does not exist in the document")
    exit()
}
if(!basicParagraphStyle2.isValid)
{
    alert("Style 06 Body does not exist in the document")
    exit()
}
var paraStyles = doc.allParagraphStyles;      //You don't need this line, this is done in line no 2, remove this
for(var n=0; n<paraStyles.length; n++)     
{ 
    if(paraStyles.name.match(/03|04|05|06|07|08|09|10|11|12|13|14|15|16/g)) { 
          paraStyles.basedOn = basicParagraphStyle1;    // Here you used == instead of =, in addition to the wrong property name
    } 
    else if(paraStyles.name.match(/17|18|19|20|21|22|23|24|25|26|27|28|29|30/g)) { 
          paraStyles.basedOn = basicParagraphStyle2;  // Here you used == instead of =, in addition to the wrong property name
    } 
}

-Manan

[Johnwhite]

thanks so much Manan

John