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More operators to come in this lesson, and they are important.

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So we are going to spend a little bit more time on operators.

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So we saw not operators.

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And there's also increment, which is a shorthand method for operators.

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And we could also update our assignment operators by using the plus equal sign instead of just the equals

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sign equal plus.

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And I'm going to show you some examples of these coming up.

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So we saw it with assignment operators where we could set a variable, we could declare a variable and

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we can sign a value using that equal sign.

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So there's a little bit more we can do as well.

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And Mozilla has a great and Mozilla has a document on this, of course, for the assignment operator.

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So there's the equal sign.

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So we are familiar with that one.

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And we're also looking at how we can equal it.

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And then we can have another formula here.

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So another arithmetic or operator there, and they've got the full list of different types of assignment

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operators.

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So we've got addition, assignment, subtraction, assignment, multiplication, division and so on.

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There's a whole bunch of operators that are available for you.

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So the typical assignment operator is just the equal sign.

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But we can also equal and equal so that all of them will equal that one value.

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So X, Y and Z are all going to be equivalent to the same value because then at the end is equal to

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25.

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There's also a shorthand, which is the plus equal sign.

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So this is equivalent to X equals X plus Y, or you could do X plus equal Y.

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So that's a shorthand format for doing that.

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And they've got some examples here of those.

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And we can also do a number plus a string.

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And this is just concatenation.

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So JavaScript takes care of the data type X equals X minus wire.

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We could do X minus equal Y, so it's the same thing and some additional examples of that.

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And of course we can't subtract strings as we saw before.

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So that's where we get that nine again.

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So nine not a number.

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There's also multiplication, same format and also division where we can do the assignment division

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and shorten that as well.

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And that will definitely keep you busy trying out all of those examples.

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So we did see that we did have a shorthand method and we also have the ability to increment.

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So plus plus, minus minus.

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And that's equal to X equals X plus one or X equals X minus one, comma B comma C comedy.

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But we can also assign values as we're declaring them and we can assign multiple values at one time

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to variables.

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So now we have an interesting challenge for you in this lesson and that's to take the code and determine

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what the output of the code will be.

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So what's going to be output in the console?

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So try out some of the different operators, try out some of the different combinations and see what

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you can get as the solution to this code number is going to be equal to five.

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Second number is going to be equal to ten variable A equals five plus five.

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We're going to see that A has a value of ten, of course.

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And now if we take A and if we equal it to a plus ten, then that's going to return back the value of

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eight at twenty.

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Or we could do a and plus equals another ten.

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And what do you think the value of A is going to be?

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If you said thirty, you are correct.

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So do try that out and play around with it a little bit.

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Let's finish up this.

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So we saw that we can do these different assignment values and we can also increment eight.

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So now if we return back a we get a value of thirty one and notice that the response is still at thirty

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because we're responding back to the value of a so we haven't done the increment quite yet.

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And that's the same thing.

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If we do a minus minus we're still at thirty one.

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But when we look at the value of a it's thirty, so keep that in mind that we're always seen that as

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the response.

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So if we were actually assigning a value of whatever a minus minus is equal to, we would still be holding

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that initial value before we did the actual subtraction and we're going to increment it by one and then

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take the second number and we're going to decrease it by one and then we're going to create another

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variable and assigning a value of first num plus second num, and that's going to be the value of total

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and first of all, console logout, whatever the value of total is.

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And we're going to equal that to five hundred plus one hundred divided by five plus total.

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So also let's logout the value of total and you can see that we're being returned back fifteen for the

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first one.

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So what's happening here is that first number is five second numbers, ten.

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We're adding one to first number, so.

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Getting back six and then we're subtracting one from second number, so we're getting six plus nine,

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and that's leaving our total of 15.

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So if you take those in first number, we've got six second number, we've got nine.

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And that's where we get in the 15.

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The next one, 500 plus one hundred divided by five plus total.

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So one hundred divided by five is twenty five hundred plus twenty plus the value of total.

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And we know the value of total is 15, then we get a total of 335.

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So that's how we can work out the calculations for this particular assignment.