Array slicing
Alright kiddo, let's talk about array slicing.
So imagine you have a really long line of toys, and you want to pick out certain toys that you like. You also want to make sure you only pick out a certain amount of toys. That's kind of what array slicing is like.
An array is basically a line of things, like a bunch of toys or a line of people waiting for ice cream. Instead of toys or people, it's a line of numbers or strings or other things.
Slicing means you can pick out certain parts of that line. So if you have an array of numbers like this: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], you can slice out certain parts of it.
Let's say you want to pick out the numbers 3, 4, and 5. You could slice those out by saying "give me the part of the line that starts at the third number and goes up to the fifth number". So you would say [3:6], because you start counting at 0, not 1.
If you wanted to slice out the first 4 numbers, you would say [0:4], and if you wanted to slice out the last 3 numbers, you could say [-3:]. The that negative sign just means you're counting from the end of the line instead of the beginning.
So that's basically what array slicing is - it's picking out certain parts of a line of numbers or other things. Pretty cool, right?
So imagine you have a really long line of toys, and you want to pick out certain toys that you like. You also want to make sure you only pick out a certain amount of toys. That's kind of what array slicing is like.
An array is basically a line of things, like a bunch of toys or a line of people waiting for ice cream. Instead of toys or people, it's a line of numbers or strings or other things.
Slicing means you can pick out certain parts of that line. So if you have an array of numbers like this: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], you can slice out certain parts of it.
Let's say you want to pick out the numbers 3, 4, and 5. You could slice those out by saying "give me the part of the line that starts at the third number and goes up to the fifth number". So you would say [3:6], because you start counting at 0, not 1.
If you wanted to slice out the first 4 numbers, you would say [0:4], and if you wanted to slice out the last 3 numbers, you could say [-3:]. The that negative sign just means you're counting from the end of the line instead of the beginning.
So that's basically what array slicing is - it's picking out certain parts of a line of numbers or other things. Pretty cool, right?