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insert , remove or replace one or more array elements


 anArray.splice(startIndex, length, newElement1, newElement2, ...)


commentsJavascript sourceExecution result in your current browser
initialize array
var a1=[1,2,3,4,5,6];
document.write(a1);

Remove the first 3 elements
a1.splice(0,3);
document.write(a1);

Insert 2 elements at the begining
a1.splice(0,0, "One", "Two");
document.write(a1);

Delete 2 elements following the first element
a1.splice(1,2);
document.write(a1);

Update the last 2 elements
a1.splice(-2,2,["Two","Three"]);
document.write(a1);

replace with new array
a1.splice(0,a1.length, 1,2,3,4,5);
document.write(a1);