I have created an Array with 5 values: Fat, Sugar, Carbs, Cals, 5. The first 4 values are literal strings:: Everything in blue is created by the script :
The last value is a number:
Next I will look at the entries array method which returns:
Next is the 'length' method. This returns the length or number of values in an array:
Now I will add 10 to the last value in the array as it is a number:
Next I will display the whole array using the 'toString()' method:
Now I could look at assigning values to elements in an array. By entering them as input from a page.
Enter a new value for the last element:
The next most common thing is to iterate through an array outputting each value on a new line. To do this I will use the 'for' loop. I will use the array I have already created: The trick here was to declare a variable and assign it an empty string then to fill the empty string with the new value using the var += newvar.
Next I am going to add elements to the array from user input:
What would you like to add?
Next I want to add two arrays together:
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