I need to download images using this package - but sometimes, one of these images is corrupted. Here, one of the two sample images is corrupted and I'm adding a Math.random() to simulate this case. I'm now trying to restart the program once the .catch() occurs - the thing is the program runs infinitely then. How can I solve this?
My code is:
let imgArrays = ["https://upload.wikimedia.org/wikipedia/commons/d/dc/Gigi1.jpg", "https://mms.businesswire.com/media/20211119005773/fr/929256/5/Aries_Linden_mechanical_completion_11-19-2021.jpg"]
const runingImage = () => {
const url = imgArrays[Math.floor(imgArrays.length * Math.random())];
const path = 'img/image.jpg'
options = {
url: url,
dest: path
}
download.image(options)
.then(({
filename
}) => {
console.log('Saved to', filename)
}).catch(
(err) => {
console.log("running again");
return runingImage();
})
}
runingImage();
When I run it, it now only gives me:
running again
running again
...
Until I stops the console.
Remove the return statement. It should be like:
let imgArrays = ["https://upload.wikimedia.org/wikipedia/commons/d/dc/Gigi1.jpg", "https://mms.businesswire.com/media/20211119005773/fr/929256/5/Aries_Linden_mechanical_completion_11-19-2021.jpg"]
const runingImage = () => {
const url = imgArrays[Math.floor(imgArrays.length * Math.random())]
const path = 'img/image.jpg'
options = {
url: url,
dest: path
}
download.image(options)
.then(({
filename
}) => {
console.log('Saved to', filename)
}).catch(
(err) => {
console.log("running again")
})
}
runingImage()
It is unfortunate that you stepped into a trap all programmers have fallen (and still falling) at some point: missing files/folders
when you are still in the development stage, always print errors in catch statements. this is what you would get and eventually solve the problem yourself:
console.log(err)
ENOENT: no such file or directory, open 'img/image.jpg'
also there is this little mistake you are doing. you are creating a void type function and try to return its value which is always undefined
solution:
img folder in the directory you put this file of yours.return word inside catch block leaving only runingImage();