javascript - Check local storage variable already present, if not create a new one -
i want create local storage variable checking present or not. if variable exist change variable name , create new one. not understand how it. please me this. thanks
here code
var vcount=1; var vname='session_'+vcount; while(localstorage.getitem(vname) === null) { vcount++; vname='session_'+vcount; //if variable name available create new variable }
start count name , query local storage see if exists. if - increment count , save value loan storage. if not - doesn't exist save original.
var vcount=1; var vname='session_'+vcount; var storedname= sessionstorage.getitem("vname"); if (storedname){ var vcount += 1; var vname='session_' + vcount; localstorage.setitem(vname, vname); //this increment number , set variable name } else { localstorage.setitem("vname", vname); }
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