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JavaScript WARNING: Line: 26: setImageURL() url parameter value (undefined) is not a string.

bpjacobsen

New Coder
My Son is going crazy trying to figure out what he is doing wrong per the above error. Please please please help if possible. I don't no Javascript to save my life. Here is the code:

JavaScript:
var randomNum = 0;
var images = ["luck4leaf.jpg", "horseshoe.jpg", "lottery.jpg", "gold.jpg", "rainbow.jpg", "conch.jpg", "green.jpg", "penny.jpg"];


onEvent("beginBtn", "click", function( ) {
  setScreen("gameScrn");
});

onEvent("itemsScrnBtn", "click", function( ) {
  setScreen("rankScrn");
});

onEvent("luckToHomeBtn", "click", function( ) {
  setScreen("homeScrn");
});


//
onEvent("randomBtn", "click", function( ) {
  randomGen();
});

function randomGen() {
    randomNum = images[(randomNumber(0, images.length))];
    setScreen("gameScrn");
    setImageURL("randomImg", images[randomNum]);

}
 
This must be a partial code because I get errors. To get a random image from the list

JavaScript:
var randomNum;
var images = ["luck4leaf.jpg", "horseshoe.jpg", "lottery.jpg", "gold.jpg", "rainbow.jpg", "conch.jpg", "green.jpg", "penny.jpg"];

// onEvent("beginBtn", "click", function( ) {
//   setScreen("gameScrn");
// });
// onEvent("itemsScrnBtn", "click", function( ) {
//   setScreen("rankScrn");
// });
// onEvent("luckToHomeBtn", "click", function( ) {
//   setScreen("homeScrn");
// });

// //
// onEvent("randomBtn", "click", function( ) {
//   randomGen();
// });
function randomGen() {
    randomNum = Math.floor(Math.random()*images.length);
    return images[randomNum]
    // setScreen("gameScrn");
    // setImageURL("randomImg", images[randomNum]);
}
for(let i=0; i<10; i++){
    console.log(randomGen())
}

Output
Code:
luck4leaf.jpg
test.js:34
horseshoe.jpg
test.js:34
gold.jpg
test.js:34
conch.jpg
test.js:34
luck4leaf.jpg
test.js:34
green.jpg
test.js:34
lottery.jpg
test.js:34
luck4leaf.jpg
test.js:34
gold.jpg
test.js:34
green.jpg
 

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