How to verify if a layer name has a specific substring?

[Bram Hoekstra]

Heey,

I'm wondering how to use a substring of a layer name as a condition for an if/else expression.

I want to verify that the layer above the layer with the expression, has a specific (part of a) name, and if so, it executes some code.

I have added an example. In the example it is only a single word, but I want to be able to apply it to for example "Text Column 1" in such a way that the code will be executed if "Text Column" is in the layer name.

I hope my question is clear and that there is someone who can help me.

Thanks in advance

[Mathias Moehl · Accepted solution]

I think your attempt

name.substr(...) = "Heading"

has two problems:

1) you need to use == instead of =

2) the second parameter of substr() is the length of the substring you want to get.

So to compare it to "Heading" which has 7 letters, you should do substr(0,7).

Extra tip: If you don't want to find it only at the beginning of the comp name, use the function indexOf:

if(name.indexOf("Heading")>=0){

  // name contains "Heading"

}

[Bram Hoekstra]

I tried to adapt my scripting with the tips you gave me, but I get an error that says: "undefined is not an object".

I added a screenshot of the new code.

[Mathias Moehl]

You should run the script in the debugger and see at which line the error occurs exactly. Without a line number, this error message is not helpful.