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All right.
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So here's the answer to this challenge.
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Now in order to solve this challenge you have to remember that programmers don't memorize things.
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Instead we always search for what it is that we need and the skill is being able to apply it to your
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current problem.
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Good old Google.
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I'm going to start off by searching inside Google for what it is that I want and it tends to be verb
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object and the programming language that I use.
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So in this case I want to truncate a string using Javascript.
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This is a good format to use whenever you're trying to solve problems.
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Don't have anything that's really specific in here.
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Say if I just said truncate string to 100 characters, then I would limit my search to only the people
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who explained how to truncate a string to 100 characters right?
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Somebody might have wanted to do it for 20 characters or 5 characters. So don't have anything specific
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in there, just have a verb, an object
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and the programming language and that tends to work pretty well.
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So let's explore the first answer.
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And it seems like this person also just want to truncate something using pure Javascript down to a set
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number of characters.
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Now the first answer explains to you that you can use the substring method and they very kindly link to
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the documentation. And you can see that here if you have a variable that say hello world which is a string
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then you can use the substring method on that string in order to cut it down.
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So in this case if we're saying that we want to cut it down from 1 to 4, then remember that programming
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starts from 0
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so we would take the first character of our Hello world
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so at this position, and then we would end up the fourth character.
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So if I now hit Try it you can see that I just get ell . And if I change this to say 0 and 3 then
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I will start from the beginning and I'll only take the first three characters.
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So now if I hit run and hit Try it, then I only get Hel.
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So let's apply this substring method to our code to make it do what we want.
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The part that we want to truncate is our post.content and we want to do it inside our home.ejs
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where we got access to each and every post's content. Right at the end here
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I'm going to tag on that method substring and then I need to specify a from and a to.
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So the from is going to be from the very beginning,
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so the zeroth character and the end is going to be at the 100th character,
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so 0 - 100. And then at the end of all of this string, I'm going to append or add onto it space and then
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...
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And this should indicate to the reader that this is truncated
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and if they wanted to read more than they have to click on something.
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So let's hit save. And we head back to our home page and we hit refresh
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then you should see that all of our blog posts are now truncated down to only 100 characters and we
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just have that ... at the end to show that there's actually more. To complete this entire module
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there is only one more challenge.
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So I'll see over there.