Sum of previous numbers in an array

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I have an array of dates [30,30,31,31,30,30] and i need to write it as [30,60,91,122,152,182]

What I have tried:

var dateArr = getDateArray(date2, date1);
        var dayCounts = "";
        for (var x = 0; x < dateArr.length-1; x++)
        {
            dayCounts += daysBetween(dateArr[x], dateArr[x+1]);

}

Posted 10-Oct-18 10:43am

Member 14013562

Updated 10-Oct-18 17:24pm

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Comments

Mohibur Rashid 10-Oct-18 16:54pm

Have you done it on paper with pen?
Have you created an algorithm?

Try those first

MadMyche 10-Oct-18 17:15pm

Think about this based on what you have, as it is an array of Integers.
Create a new array based on the incrementing x from 0 by array element value

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Patrice T · Answer 1 · 2018-10-10T17:25:00

Quote:
I have an array of dates [30,30,31,31,30,30] and i need to write it as [30,60,91,122,152,182]

Tale a sheet of paper, a pencil and solve the problem by hand.
How did you solve it ? It is your algorithm.
Have you needed some 'date' function to get the answer ?

HomeWork problems are simplified versions of the kind of problems you will have to solve in real life, their purpose is learning and practicing.
We do not do your HomeWork.
HomeWork is not set to test your skills at begging other people to do your work, it is set to make you think and to help your teacher to check your understanding of the courses you have taken and also the problems you have at applying them.
Any failure of you will help your teacher spot your weaknesses and set remedial actions.
Any failure of you will help you to learn what works and what don't, it is called 'trial and error' learning.
So, give it a try, reread your lessons and start working. If you are stuck on a specific problem, show your code and explain this exact problem, we might help.

As programmer, your job is to create algorithms that solve specific problems and you can't rely on someone else to eternally do it for you, so there is a time where you will have to learn how to. And the sooner, the better.
When you just ask for the solution, it is like trying to learn to drive a car by having someone else training.
Creating an algorithm is basically finding the maths and make necessary adaptation to fit your actual problem.

The idea of "development" is as the word suggests: "The systematic use of scientific and technical knowledge to meet specific objectives or requirements." BusinessDictionary.com[^]
That's not the same thing as "have a quick google and give up if I can't find exactly the right code".