buttons to codes in javascript, translating button clicks into codes

buttons to codes in javascript, translating button clicks into codes

I'm thinking of developing an application, well for learning purposes.
Let's say I have this graphical user interface, with 2 buttons, one is
labeled with if and one is labeled with else
If I click on the if button, my editor will generate an
if(param) {
// some things
}
block automatically.
Are there javascript libraries which already try to do this, more like a
click programming.
The possible solutions could be attached a data- attribute to those
buttons and use them to generate solutions.
What libraries could possibly do this efficiently?