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JavaScript

jason limmm
jason limmm
8,009 Points
Posted by jason limmm
jason limmm
8,009 Points

js error

here is my snapshot:https://w.trhou.se/pcxw1vsvba

//make the variables for stuff for convenience
const nextbutton = document.body.querySelector(".next");
const progressbarjuice = document.body.querySelector(".bar .myval");

nextbutton.addEventListener(
  "click", ()=>{
    progressbarjuice.style.width+=33%;
  }
)

anything wrong with this code? the chrome devtools says that there is an error in line 7, an uncaught ";"

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

The literal string values need to be enclosed in quotes:

const nextbutton = document.body.querySelector(".next");
const progressbarjuice = document.body.querySelector(".bar .myval");

    progressbarjuice.style.width = "66%";    // also, replace instead of append
jason limmm
jason limmm
8,009 Points
jason limmm
jason limmm
8,009 Points

but is there like a way i can add the percentage instead?

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Keep a separate variable for the percentage, and each time you add to it, convert it to a string and then update the element property with it. For example:

let percent = 33;     // initial percentage value
// ...
    percent += 33;    // increase the percentage
    progressbarjuice.style.width = `${percent}%`;