I have array. I have to run loop after indexing 1. I google it but did not find any answer so I did it by use of for loop. Is there any way to get this done by using of jquery without any extra effort . Like using slice and all that.
var myAr= ['a','b','c','d']
for(i=2;i<myAr.length;i++){
alert(myAr[i])
}
$.each(myAr,function(){
// what goes here
})
$.each(myAr,function(index){
if(index < 2) {
return;
}
// your code
})
if (index < 2)?
You could slice the array first:
$.each(myAr.slice(2), function(i, val) {
...
});
Inside the function, the indexes will be 2 less than they would be if you were processing the original array.
Performance-wise, the for loop is probably best. It only processes the desired elements of the array, and it doesn't perform any function calls.
Next are the answers that test the index within the loop.
My solution is probably worst, because it has to make 2 passes through the array: once to make the slice, and then to perform the $.each loop over the slice. It also uses more memory, because the slice is a new array.
https://api.jquery.com/jquery.each/
I am pretty sure that pure javascript is faster than the JQuery one, but it is a convenient function :
$.each(myAr,function(index, value){
if(index > 1) {
alert(key + ": " + value)
}
})
$( "div" ).each( function( i ){
if( i == 0 ) return;
console.log( this );
} );<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div> </div>
<div> </div>
if (i < 2)