use js to loop an array. I look at other people"s code online and use {I} to fetch variables. Is this method miscellaneous? No relevant instructions can be found on the Internet
wiki [1] is the array I want to loop.
mainly does not understand why he can use ${I} to get data, and this {$wiki [1] [I]}, is that way?
for(let i=0; i < wiki[1].length; iPP){
$(".output").append("<div class=" item item${i}" style="display:none;"><h3> ${wiki[1][i]} </h3> ${wiki[2][i]}
</div>");