alt=""

Question

Can any one say easily that what does this code do
And why should we put it after the url that we enter???

Answer 1

check out this code to understand

https://code.sololearn.com/Wr3tLUsq3w31/?ref=app

Answer 2

its useful in case the viewer is on text only mode or the image simply fails to load. the user will still have an idea what was there