I have this code:
newsArray = ["John"," Lisa"," Carl"];
And this code in a button event click:
for (var i = 0; i <newsArray.length; i++){
alert("Name: " + newsArray[i]);
}
The code now output "Name: John" "Name: Lisa" "Name: Carl"
Is it possible that second time i click the button, it will only show "Lisa" and "Carl" ?
You need to expand the code to set a variable that indicates this is second request.
Expand your code to the following.
var start = 0;
for (var i = start; i <newsArray.length; i++){
alert("Name: " + newsArray[i]);
}
if (start == 0) start++; // increment start if this is the first time
You can remove the first element of an array with the shift() method. This is destructive, but would do the job:
function clickHandler() {
newsArray.forEach(function (name) { console.log(name); });
newsArray.shift();
}
Array.forEach() will not work for IE earlier than IE9If you don't want to keep array values, you can use array shift method.
newsArray = ["John"," Lisa"," Carl"];
for (var i = 0; i <newsArray.length; i++){
alert("Name: " + newsArray[i]);
}
newsArray.shift();
Hope it helps.
