All language subtitles for 105 Javascript Variables Exercise Start.en_US

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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,730 --> 00:00:08,250 All right guys in the next lesson I've got a coding exercise for you and it's meant to test your understanding 2 00:00:08,370 --> 00:00:10,170 of JavaScript variables. 3 00:00:10,200 --> 00:00:15,870 Now when you head over to the next lesson you'll find a section with the instructions at the top and 4 00:00:15,870 --> 00:00:18,000 your code file at the bottom. 5 00:00:18,000 --> 00:00:26,280 Now the goal is to switch the values that are held in two variables around so to begin. 6 00:00:26,280 --> 00:00:33,510 We have a variable a which holds the value three and the variable B which holds the value eight. 7 00:00:33,510 --> 00:00:40,350 Now you have to write some code on lines seven eight and nine so that the values are switched around 8 00:00:40,350 --> 00:00:47,950 so that a holds eight instead and b holds three The way I like to think about it is let's say you had 9 00:00:47,950 --> 00:00:53,880 two buckets right bucket and Bucket B a hold some sand and b hold some water. 10 00:00:53,920 --> 00:00:58,480 How would you get the contents of these two buckets to switch around. 11 00:00:58,480 --> 00:01:00,960 That's basically your goal for this challenge. 12 00:01:01,240 --> 00:01:05,830 But there's a couple of rules that you have to follow in order to get the correct answer. 13 00:01:05,980 --> 00:01:12,430 Now first you should not change any of the existing code so don't touch this part and don't touch this 14 00:01:12,430 --> 00:01:13,130 pope. 15 00:01:13,420 --> 00:01:17,580 You are just allowed to write in these three lines. 16 00:01:17,590 --> 00:01:21,280 Now the second rule is you're not allowed to type any numbers. 17 00:01:21,280 --> 00:01:27,430 You can't just simply say well a equals eight and b equals three. 18 00:01:27,430 --> 00:01:30,540 This is not a valid solution. 19 00:01:30,550 --> 00:01:36,370 Now the final rule is you're not allowed to read declare the variables either so you can't for example 20 00:01:36,370 --> 00:01:42,280 just say Well now a equals eight and b equals three. 21 00:01:42,280 --> 00:01:44,190 This is also wrong. 22 00:01:44,650 --> 00:01:50,790 So have a think about how you can solve this challenge given all of these constraints. 23 00:01:50,890 --> 00:01:55,180 And over here I've got a code playground set up for you. 24 00:01:55,180 --> 00:02:00,490 So when you click on it you should be taken to the same file where you can write your code and you can 25 00:02:00,490 --> 00:02:03,150 use this playground to test out your code. 26 00:02:03,160 --> 00:02:10,740 So for example at the moment if I just click run then it's going to log that a is 3 and B is 8. 27 00:02:10,750 --> 00:02:17,700 Now what we want to happen is when we hit run it should say the opposite a is a and b is three. 28 00:02:17,710 --> 00:02:23,560 So how we play around with the code and use the rappel it to test out your code and your hypotheses 29 00:02:23,920 --> 00:02:27,600 and hit run to see if it actually does what you expect it to. 30 00:02:27,700 --> 00:02:32,500 And then once you think you've got the solution then go ahead and write them in your code file here 31 00:02:32,890 --> 00:02:38,140 and you can click on checked solution to see if you got the answer right now. 32 00:02:38,200 --> 00:02:43,350 Once you're done you can click continue and I'll talk you through the solution code. 33 00:02:43,450 --> 00:02:46,950 So head over to the next lesson and start the code challenge. 3518

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