PDF JavaScript：将变量的值插入表单字段

Question

I have a PDF with JavaScipt, all end users running Adobe Acrobat Pro DC. I have successfully figure out how to get it to fill a form field with values from other form fields:

// Assuming FormFieldB has a value of "somewhere" and FormFieldA is a text box

this.getField("FormFieldA").value = "Fills a sentence and adds a string from " + this.getField("FormFieldB").value + " successfully.";

// This fills the box with "Fills a sentence and adds a string from somewhere successfully.

But what I'm trying to do is basically the same thing but I'm trying to take the value of a variable and add it into the form field.

var my_variable = "somewhere";

this.getField("FormFieldA").value = "Fills a sentence and adds a string from <How do I insert from my_variable> successfully";

// I want it do write the same example sentence as before

Any ideas? Thanks!

Answer 1

Just concatenate the strings...

var my_variable = "somewhere";

this.getField("FormFieldA").value = "Fills a sentence and adds a string from "+my_variable+" successfully";

Answer 2

If you are using ES6 syntax you can use it this way:

let my_variable = "somewhere";
this.getField("FormFieldA").value = `Fills a sentence and adds a string from ${my_variable} successfully`;

" ` " is the backtick/string literal operator introduced in ES6 it stands just before the 1 key.