Setting the value of 'dataURL' exceeded the quota

Question

I have a JavaScript code which save string to the Local storage, the string size is 400000,

var dataURL = canvas.toDataURL(\"image/jpg\").toString();
localSt         


        

Answer 1

When your browser reaches to maximum limit it will throw this error Failed to execute 'setItem' on 'Storage': Setting the value of '' exceeded the quota.

• You can handle it like this

 try {
     var count = 100;
     var message = "LocalStorageIsNOTFull";
     for (var i = 0; i <= count; count + 250) {
         message += message;
         localStorage.setItem("stringData", message);
         console.log(localStorage);
         console.log(count);
     }

 }
 catch (e) {
     console.log("Local Storage is full, Please empty data");
     // fires When localstorage gets full
     // you can handle error here or empty the local storage
 }