将阵列保存在本地存储中

Question

This is my full code

I need to save the array visited to local storage. Then, I need an if statement to check if the array has been stored. If it has, it will do

return;

ending the code and making the button not functional. Something like this;

if (store.length == 3) {
    document.getElementById('btn').className = 'maxques';
    alert('You have completed this category');
    console.log(store);
    return; }

I just somehow need to store the array. I tried JSON stringify followed by JSON parse but either they don't work or I'm doing them wrong. Any ideas?

Answer 1

At the risk of repeating @Tom Hart, use a combination of the functions localstorage.setItem and localStorage.getItem. Respectively params being key, value and key.

Answer 2

To store your array:

localStorage.userEdits=array.join(","); //or another delimiter

To check if stored:

if(localStorage.userEdits){
    //stored!
}