Menu
By default the indexing of every JavaScript array starts from 0. I want to create an array whose indexing starts from 1 instead.
I know, must be very trivial... Thanks for your help.
579
Base Index of Java arrays is always 0. It cannot be changed to 1. Show activity on this post. You can use pointers, to jump to a certain point of the array and start the array from there.
As others said, In Javascript array[-1] is just a reference to a property of array (like length ) that is usually undefined (because it's not evaluated to any value).
Zero-based array indexing is a way of numbering the items in an array such that the first item of it has an index of 0, whereas a one-based array indexed array has its first item indexed as 1. Zero-based indexing is a very common way to number items in a sequence in today's modern mathematical notation.
JavaScript arrays are zero-indexed: the first element of an array is at index 0 , the second is at index 1 , and so on — and the last element is at the value of the array's length property minus 1 .
It isn't trivial. It's impossible. The best you could do is create an object using numeric properties starting at 1 but that's not the same thing.
Why exactly do you want it to start at 1? Either:
Start at 0 and adjust your indices as necessary; or
Start at 0 and just ignore index 0 (ie only use indices 1 and up).
162
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
