Meaning of 'on end' in a particular sentence

[Tamara]

Hi

You could study it for weeks on end prior to coding a simple procedure.

I suppose here on end = through.

Could you validate it or give a better 'translation' of the phrase on end in the above context?
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It’s impossible to learn swimming without entering the water…

[Alan]

Hi Tamara,

The suggestion here is that this study would go on week after week. 'On end' implies never stopping.

A
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English as a Second Language
You can read my ESL story Everything in the Garden is lovely

[Tamara]

Hi Alan,

Thanks!
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It’s impossible to learn swimming without entering the water…