Shift Shift allows us to remove the first item in the array. It works similar to pop. Consider the following code from our baseball array we have been using… The output will be ‘Ruth’, ‘Wagner’, ‘Uecker’. It basically removes the item and shifts everything over. There might be times you
Pop Pop allows us to remove the last item in an array. If we execute the following code from the last post’s array… The output will be ‘Aaron’, ‘Ruth’, ‘Wagner’. There might be times you wish to remove an item from an array, but still keep it for some usage.
Push Push is an array method that allows us to add items to the end of the array. For example, perhaps we wish to add Uecker to the array. We can utilize push as follows… The output to the console will be ‘Aaron’, ‘Ruth’, ‘Wagner’, ‘Uecker’. Happy Coding! Clay Hess
An array comes with properties and methods we can use in our programming to accomplish tasks with our array data. Length There are times we wish to know how many items are in our array. We can do this with the length property. For example… The aforementioned code will output
Arrays are variables that allow us to store multiple values in a single item. For example, if you collect baseball cards, you might have a cards array and your individual baseball cards in each slot of the array. How do we create an array? In JavaScript, we use square brackets
In JavaScript, as in other languages, there is a math method that we can use when working with and manipulating numbers. JavaScript does give us the ability to work with numbers directly in our variables, but there are some “quirks”. For example… You would expect the console to display 8.4,
