1 00:00:00,390 --> 00:00:04,890 You guys this should be kind of a quick video we're just going to talk about switches real quick which 2 00:00:04,890 --> 00:00:05,910 are pretty easy. 3 00:00:05,910 --> 00:00:09,510 It's just another way to validate conditions. 4 00:00:09,900 --> 00:00:14,820 So we're going to kind of do what we did with the colors in the IF statements in the last video except 5 00:00:14,820 --> 00:00:21,150 we're going to use switches so let's create a color here and let's make it red. 6 00:00:21,360 --> 00:00:21,870 All right. 7 00:00:21,870 --> 00:00:27,830 Instead of using if else what we're going to do is we're going to use a switch. 8 00:00:29,020 --> 00:00:33,070 And here is what we want to test and what we want to test is the color. 9 00:00:33,390 --> 00:00:40,470 OK so inside of a switch what you want to do is define cases different cases So let's say we have a 10 00:00:40,470 --> 00:00:43,700 case where it's red right. 11 00:00:43,710 --> 00:00:49,650 And then the syntax is to put a colon here and then we're going to do whatever it is we want to do if 12 00:00:49,650 --> 00:00:50,160 it's red. 13 00:00:50,160 --> 00:00:57,670 In this case we're just going to console log and we'll say color is red. 14 00:00:57,990 --> 00:00:58,390 All right. 15 00:00:58,410 --> 00:01:02,000 And then we're going to want to break from that case. 16 00:01:02,070 --> 00:01:02,460 All right. 17 00:01:02,460 --> 00:01:10,490 Let's put another case if it's blue colon will console log 18 00:01:13,370 --> 00:01:16,210 and will say color is blue. 19 00:01:16,650 --> 00:01:18,620 And then we want to break. 20 00:01:19,460 --> 00:01:19,890 OK. 21 00:01:19,890 --> 00:01:25,020 Now we can keep going we can do other colors if we want but when we come to an end what we'll do is 22 00:01:25,020 --> 00:01:37,020 have a default case will say default colon and then let's to console the log will say color is not red 23 00:01:37,050 --> 00:01:38,300 or blue. 24 00:01:38,790 --> 00:01:40,440 OK. 25 00:01:41,750 --> 00:01:43,020 And then we'll break. 26 00:01:43,410 --> 00:01:51,470 So let's go ahead and save this and if we look down here we get color as red if we change it to blue. 27 00:01:51,660 --> 00:01:53,670 Save it we get color is blue. 28 00:01:53,850 --> 00:01:58,420 If we change it to yellow and save it we get color is not red or blue. 29 00:01:58,620 --> 00:01:59,130 OK. 30 00:01:59,310 --> 00:02:05,130 So it does exactly what the if else or the LCF did in the last video. 31 00:02:05,130 --> 00:02:07,550 It's just a different way of doing things. 32 00:02:07,550 --> 00:02:07,940 All right. 33 00:02:07,950 --> 00:02:14,010 Now switches I would suggest using a switch and you have a lot of different cases rather than doing 34 00:02:14,010 --> 00:02:15,980 you know else if else if else. 35 00:02:16,200 --> 00:02:18,990 I think a switch is better in that situation. 36 00:02:19,470 --> 00:02:21,960 So let's do one more thing here with switches. 37 00:02:22,040 --> 00:02:30,810 What I'm going to do is what I want to evaluate here is the day of the week so remember with dates we 38 00:02:30,810 --> 00:02:32,270 can say new day. 39 00:02:32,760 --> 00:02:36,990 And then we can use the get day method. 40 00:02:36,990 --> 00:02:40,640 All right so that's going to give us the day of the week in number form. 41 00:02:40,650 --> 00:02:42,720 OK starting with 0 for Sunday. 42 00:02:42,720 --> 00:02:47,030 So what I'll do is I'll say case 0. 43 00:02:47,670 --> 00:02:50,400 And let's set a variable here. 44 00:02:50,400 --> 00:02:59,070 Actually Will we'll set the variables say Let day and then down here will say day equals 45 00:03:01,590 --> 00:03:06,070 Sunday OK and then we'll set a break. 46 00:03:09,360 --> 00:03:11,320 You will indent that. 47 00:03:11,650 --> 00:03:12,030 All right. 48 00:03:12,050 --> 00:03:19,820 And then I'm just going to copy this and we're going to mess up the indents here but that's all right 49 00:03:19,820 --> 00:03:29,090 and I'll fix it after sort of I've got one two three four five six seven and then we'll just bring back 50 00:03:30,230 --> 00:03:31,390 these cases 51 00:03:34,380 --> 00:03:42,750 I saw 0 1 2 3 4 5 and 6. 52 00:03:42,750 --> 00:03:44,650 All right so this would be Monday. 53 00:03:50,270 --> 00:03:51,050 Tuesday 54 00:04:00,360 --> 00:04:04,650 Friday and Saturday. 55 00:04:05,500 --> 00:04:06,170 OK. 56 00:04:06,330 --> 00:04:14,910 So now we have our switch and then let's go ahead and at the end here will console dot blog and let's 57 00:04:14,910 --> 00:04:22,790 put a template literal in here and we'll say today is and then we'll put our day variables so let's 58 00:04:22,790 --> 00:04:25,980 save and we get today's Thursday. 59 00:04:26,100 --> 00:04:26,490 All right. 60 00:04:26,490 --> 00:04:28,320 Which is true. 61 00:04:28,320 --> 00:04:31,740 You can see right here Thursday. 62 00:04:31,750 --> 00:04:37,210 All right so I'm not going to go much more into this which is pretty easy to understand in the next 63 00:04:37,210 --> 00:04:37,910 video. 64 00:04:37,930 --> 00:04:41,190 We're going to be taking a look at functions. 65 00:04:41,260 --> 00:04:46,490 Now we're going to look at function declarations and function expressions. 66 00:04:46,510 --> 00:04:48,680 All right so I will see you in the next video.