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These are the user uploaded subtitles that are being translated: 1 1 00:00:01,420 --> 00:00:04,993 Let's now perform some operations with dates. 2 2 00:00:06,620 --> 00:00:09,880 So one cool thing that we can do with dates 3 3 00:00:09,880 --> 00:00:12,410 is to do calculations with them. 4 4 00:00:12,410 --> 00:00:14,910 For example, we can subtract one date 5 5 00:00:14,910 --> 00:00:16,470 from another date, 6 6 00:00:16,470 --> 00:00:19,550 in order to calculate how many days have passed 7 7 00:00:19,550 --> 00:00:21,890 between the two dates. 8 8 00:00:21,890 --> 00:00:23,060 And this works, 9 9 00:00:23,060 --> 00:00:26,110 because whenever we attempt to convert a date 10 10 00:00:26,110 --> 00:00:29,440 to a number, then the result is going to be the 11 11 00:00:29,440 --> 00:00:31,830 timestamp in milliseconds. 12 12 00:00:31,830 --> 00:00:33,320 And with these milliseconds, 13 13 00:00:33,320 --> 00:00:36,130 we can then perform calculations. 14 14 00:00:36,130 --> 00:00:40,140 So again, the timestamps are going to be really helpful here 15 15 00:00:40,140 --> 00:00:42,000 in this situation. 16 16 00:00:42,000 --> 00:00:44,083 So let's get this date here. 17 17 00:00:46,460 --> 00:00:50,193 Okay, and let me just demonstrate what I just said. 18 18 00:00:51,310 --> 00:00:55,433 So I will convert to a number, this feature. 19 19 00:00:57,430 --> 00:00:59,860 So you see, it worked. 20 20 00:00:59,860 --> 00:01:01,340 And the same thing is going to happen 21 21 00:01:01,340 --> 00:01:03,933 when I use the plus operator on it. 22 22 00:01:05,970 --> 00:01:07,300 So you see. 23 23 00:01:07,300 --> 00:01:08,210 And so in fact, 24 24 00:01:08,210 --> 00:01:11,590 that does mean we can now do operations with it. 25 25 00:01:11,590 --> 00:01:14,140 So if we subtract one date from another, 26 26 00:01:14,140 --> 00:01:17,260 the result is going to be a number like this. 27 27 00:01:17,260 --> 00:01:19,660 So a timestamp in milliseconds. 28 28 00:01:19,660 --> 00:01:21,400 And then we can simply convert 29 29 00:01:21,400 --> 00:01:24,210 these milliseconds back to Days, 30 30 00:01:24,210 --> 00:01:25,480 or two hours, 31 31 00:01:25,480 --> 00:01:27,653 or to whatever we really want. 32 32 00:01:28,500 --> 00:01:31,080 So let's actually now create a function 33 33 00:01:31,080 --> 00:01:33,000 that takes in two dates. 34 34 00:01:33,000 --> 00:01:35,380 And it's going to return the number of days 35 35 00:01:35,380 --> 00:01:37,773 that pass between these two dates. 36 36 00:01:39,170 --> 00:01:40,770 So days 37 37 00:01:40,770 --> 00:01:42,170 past, 38 38 00:01:42,170 --> 00:01:44,350 is going to be a function, 39 39 00:01:44,350 --> 00:01:46,790 or let's use an arrow function. 40 40 00:01:46,790 --> 00:01:48,913 So nice, one liner, 41 41 00:01:49,920 --> 00:01:51,763 so date one and date two. 42 42 00:01:53,160 --> 00:01:56,620 And then all we need to do is date two 43 43 00:01:56,620 --> 00:01:57,453 minus 44 44 00:01:57,453 --> 00:01:59,490 date, one. 45 45 00:01:59,490 --> 00:02:01,620 And so let's suppose that 46 46 00:02:02,790 --> 00:02:04,940 date two is later. 47 47 00:02:04,940 --> 00:02:06,960 But in case we do not want to suppose 48 48 00:02:06,960 --> 00:02:10,430 that we can simply take the absolute value here. 49 49 00:02:10,430 --> 00:02:11,830 And then it doesn't matter which 50 50 00:02:11,830 --> 00:02:14,653 of the dates here happened first in time. 51 51 00:02:15,520 --> 00:02:17,440 But for now, let's keep it like this. 52 52 00:02:17,440 --> 00:02:19,240 So I can show you later what I mean. 53 53 00:02:20,400 --> 00:02:23,900 So for now, let's actually also return this result. 54 54 00:02:23,900 --> 00:02:26,150 And then I will just call this function here. 55 55 00:02:27,880 --> 00:02:31,120 So calc, or actually, it's just calc Well, 56 56 00:02:31,120 --> 00:02:33,723 it should be calc a called calc. 57 57 00:02:34,650 --> 00:02:36,343 So this looks a bit nicer. 58 58 00:02:37,600 --> 00:02:39,403 So calc, days passed. 59 59 00:02:40,660 --> 00:02:43,293 And then let's just create two dates here. 60 60 00:02:45,290 --> 00:02:47,673 So let's use this one here. 61 61 00:02:48,930 --> 00:02:51,023 Maybe make it a little bit simpler. 62 62 00:02:52,540 --> 00:02:53,990 Let's say here, 63 63 00:02:53,990 --> 00:02:55,343 April 14. 64 64 00:02:56,840 --> 00:02:58,480 So this is the first date, 65 65 00:02:58,480 --> 00:03:00,713 the first that happens in time. 66 66 00:03:02,290 --> 00:03:04,220 And then the second date, 67 67 00:03:04,220 --> 00:03:06,060 let's just say, 68 68 00:03:06,060 --> 00:03:06,893 well, 69 69 00:03:06,893 --> 00:03:08,620 April 24. 70 70 00:03:08,620 --> 00:03:10,220 So this then makes it easy for us 71 71 00:03:10,220 --> 00:03:11,973 to visualize the result. 72 72 00:03:13,660 --> 00:03:17,578 And let's just call this const days one, 73 73 00:03:17,578 --> 00:03:19,633 and then login to the console. 74 74 00:03:23,060 --> 00:03:27,000 Alright, and so this gives us these milliseconds. 75 75 00:03:27,000 --> 00:03:29,450 And so now we just need to convert them. 76 76 00:03:29,450 --> 00:03:32,710 And this is similar to what we did, 77 77 00:03:32,710 --> 00:03:35,300 I think in one of the previous lectures. 78 78 00:03:35,300 --> 00:03:38,770 So we want to divide by 1000. 79 79 00:03:38,770 --> 00:03:41,653 And so this converts milliseconds to seconds, 80 80 00:03:42,650 --> 00:03:44,600 then that times 60, 81 81 00:03:44,600 --> 00:03:46,460 to convert it to minutes, 82 82 00:03:46,460 --> 00:03:49,380 then times 60 to convert it to hours, 83 83 00:03:49,380 --> 00:03:51,460 and then times 24, 84 84 00:03:51,460 --> 00:03:53,820 which converts it to days. 85 85 00:03:53,820 --> 00:03:58,820 And again, that's because there are 24 hours in a day. 86 86 00:03:59,160 --> 00:04:01,710 There are 60 minutes in one hour, 87 87 00:04:01,710 --> 00:04:04,030 60 seconds in one minute, 88 88 00:04:04,030 --> 00:04:07,363 and 1000 milliseconds in one second. 89 89 00:04:08,680 --> 00:04:11,350 And so now we get 10 days. 90 90 00:04:11,350 --> 00:04:13,250 And that makes sense. 91 91 00:04:13,250 --> 00:04:14,083 Right? 92 92 00:04:14,083 --> 00:04:15,650 So from April 24 93 93 00:04:15,650 --> 00:04:17,400 to April 14, 94 94 00:04:17,400 --> 00:04:19,500 we have exactly 10 days. 95 95 00:04:19,500 --> 00:04:21,010 Now what if here, 96 96 00:04:21,010 --> 00:04:22,210 we pass 97 97 00:04:22,210 --> 00:04:23,730 four. 98 98 00:04:23,730 --> 00:04:25,980 So now it's going to be the other way around. 99 99 00:04:27,190 --> 00:04:29,540 Right, so now we have minus 10. 100 100 00:04:29,540 --> 00:04:33,207 But we don't want that we always want it to be four 101 101 00:04:33,207 --> 00:04:35,440 and so that's what I meant earlier, 102 102 00:04:35,440 --> 00:04:39,030 where we can now simply take the absolute value of this. 103 103 00:04:39,030 --> 00:04:41,040 So math dot 104 104 00:04:41,040 --> 00:04:41,873 absolute. 105 105 00:04:45,070 --> 00:04:47,143 Which of the dates we pass in first. 106 106 00:04:48,030 --> 00:04:50,120 So if we now put four here 107 107 00:04:50,120 --> 00:04:52,200 and 14 here, 108 108 00:04:52,200 --> 00:04:55,030 then the result is still going to be 10. 109 109 00:04:55,030 --> 00:04:55,863 Great. 110 110 00:04:55,863 --> 00:04:58,440 So this works just really nice. 111 111 00:04:58,440 --> 00:05:01,590 Now if you need really pretty sighs calculations, 112 112 00:05:01,590 --> 00:05:04,390 for example, including time changes due 113 113 00:05:04,390 --> 00:05:06,520 to daylight saving changes, 114 114 00:05:06,520 --> 00:05:09,760 and other weird edge cases like that, 115 115 00:05:09,760 --> 00:05:14,420 then you should use a date library like moment dot js. 116 116 00:05:14,420 --> 00:05:15,370 And that's a library 117 117 00:05:15,370 --> 00:05:19,140 that's available for free for all JavaScript developers. 118 118 00:05:19,140 --> 00:05:21,420 But for something simple like this, 119 119 00:05:21,420 --> 00:05:23,310 we should be fine. 120 120 00:05:23,310 --> 00:05:25,230 Now, let's just consider 121 121 00:05:25,230 --> 00:05:29,200 that one of these days here also has some time. 122 122 00:05:29,200 --> 00:05:31,660 So let's say in this one here, it's also 10 123 123 00:05:31,660 --> 00:05:33,200 in the morning, 124 124 00:05:33,200 --> 00:05:34,470 or 10 125 125 00:05:34,470 --> 00:05:35,303 hours 126 126 00:05:35,303 --> 00:05:37,080 and eight minutes, 127 127 00:05:37,080 --> 00:05:38,260 doesn't really matter. 128 128 00:05:38,260 --> 00:05:41,450 But let's see what happens to the days now. 129 129 00:05:41,450 --> 00:05:44,680 And so Indeed, we now get 10.4. 130 130 00:05:44,680 --> 00:05:46,590 So we might not want that. 131 131 00:05:46,590 --> 00:05:47,423 And in this case, 132 132 00:05:47,423 --> 00:05:51,960 we can simply use math dot round on all of this. 133 133 00:05:51,960 --> 00:05:54,730 Okay, so keep that in mind. 134 134 00:05:54,730 --> 00:05:57,133 But I will just leave it like this. 135 135 00:05:58,010 --> 00:05:59,100 Alright. 136 136 00:05:59,100 --> 00:06:02,720 And now let's actually use this function to format 137 137 00:06:02,720 --> 00:06:04,920 and display or dates 138 138 00:06:04,920 --> 00:06:08,680 in a little bit nicer way here in our application. 139 139 00:06:08,680 --> 00:06:11,280 So basically, what I want to do is, 140 140 00:06:11,280 --> 00:06:13,860 if one movement happened today, 141 141 00:06:13,860 --> 00:06:16,490 then here instead of the current date, 142 142 00:06:16,490 --> 00:06:19,060 I want to display today, 143 143 00:06:19,060 --> 00:06:21,830 then if it happened yesterday, 144 144 00:06:21,830 --> 00:06:24,180 I want to write yesterday. 145 145 00:06:24,180 --> 00:06:27,500 And then if it happened, like a couple of days ago, 146 146 00:06:27,500 --> 00:06:29,010 then I want this to say, 147 147 00:06:29,010 --> 00:06:30,300 like two days ago 148 148 00:06:30,300 --> 00:06:32,000 or five days ago, 149 149 00:06:32,000 --> 00:06:33,530 instead of the date. 150 150 00:06:33,530 --> 00:06:35,220 And I'm sure you've seen this kind 151 151 00:06:35,220 --> 00:06:38,740 of stuff in many web applications that you use 152 152 00:06:38,740 --> 00:06:39,950 in your daily life. 153 153 00:06:39,950 --> 00:06:43,030 For example, if you post something on Facebook, 154 154 00:06:43,030 --> 00:06:45,207 and if you didn't watch it, 155 155 00:06:45,207 --> 00:06:46,202 the next day, 156 156 00:06:46,202 --> 00:06:47,890 it will say that you posted it yesterday, 157 157 00:06:47,890 --> 00:06:50,070 it's not going to display the exact date 158 158 00:06:50,070 --> 00:06:52,040 if it was just yesterday. 159 159 00:06:52,040 --> 00:06:54,030 And so that's a really nice use case 160 160 00:06:54,030 --> 00:06:56,023 of using a function like this. 161 161 00:06:57,260 --> 00:06:59,033 So let's grab this here. 162 162 00:07:00,420 --> 00:07:01,533 So I'm copying it. 163 163 00:07:03,010 --> 00:07:06,990 And then let's go to the display movements function, 164 164 00:07:06,990 --> 00:07:10,373 where we do actually print the date. 165 165 00:07:11,760 --> 00:07:15,250 Now, this is all kind of getting out of hand. 166 166 00:07:15,250 --> 00:07:18,000 So we have a lot of extra code here. 167 167 00:07:18,000 --> 00:07:19,733 And now we will add even more. 168 168 00:07:20,840 --> 00:07:22,860 So this function here, 169 169 00:07:22,860 --> 00:07:24,720 and even some more stuff. 170 170 00:07:24,720 --> 00:07:26,980 And so let's take all of this here, 171 171 00:07:26,980 --> 00:07:29,690 and actually create a new function, 172 172 00:07:29,690 --> 00:07:32,950 which will have the purpose of formatting this. 173 173 00:07:32,950 --> 00:07:33,783 Alright. 174 174 00:07:35,060 --> 00:07:36,810 So let's cut this here, 175 175 00:07:36,810 --> 00:07:40,660 as I just said, and create a function up here, 176 176 00:07:40,660 --> 00:07:43,210 just to make it a little bit more modular. 177 177 00:07:43,210 --> 00:07:44,050 All right. 178 178 00:07:44,050 --> 00:07:46,160 And then we can also reuse this function 179 179 00:07:46,160 --> 00:07:47,990 in some other place. 180 180 00:07:47,990 --> 00:07:49,490 Even though right now, 181 181 00:07:49,490 --> 00:07:50,323 in this case, 182 182 00:07:50,323 --> 00:07:51,890 we don't need it. 183 183 00:07:51,890 --> 00:07:53,000 I'm just doing this 184 184 00:07:53,000 --> 00:07:55,400 to split up the functionality a little bit 185 185 00:07:55,400 --> 00:07:57,623 across different places in our code. 186 186 00:07:59,240 --> 00:08:04,240 Okay, so this one receives a date as an input, 187 187 00:08:04,360 --> 00:08:05,790 and it will return 188 188 00:08:05,790 --> 00:08:08,150 the formatted date then, 189 189 00:08:08,150 --> 00:08:08,983 okay. 190 190 00:08:09,930 --> 00:08:11,770 So I'm copying all of this. 191 191 00:08:11,770 --> 00:08:15,440 But actually, this one should stay back here, 192 192 00:08:15,440 --> 00:08:16,683 where we got it from. 193 193 00:08:18,420 --> 00:08:19,793 And then also, 194 194 00:08:21,480 --> 00:08:24,630 so this, we need this variable back here, 195 195 00:08:24,630 --> 00:08:25,713 where it came from. 196 196 00:08:27,170 --> 00:08:28,240 So display date, 197 197 00:08:28,240 --> 00:08:31,250 because we use it down here as the value 198 198 00:08:31,250 --> 00:08:35,630 that we eventually want to print to the user interface. 199 199 00:08:35,630 --> 00:08:38,940 And so this one should actually be the result 200 200 00:08:38,940 --> 00:08:41,350 of calling or new function. 201 201 00:08:41,350 --> 00:08:43,393 So this format, movement date. 202 202 00:08:44,560 --> 00:08:47,130 So format, movement date, 203 203 00:08:47,130 --> 00:08:49,690 and here, we pass in the date variable 204 204 00:08:49,690 --> 00:08:51,463 that we just created up here. 205 205 00:08:53,012 --> 00:08:54,410 Alright, 206 206 00:08:54,410 --> 00:08:55,280 and so with this, 207 207 00:08:55,280 --> 00:08:58,750 we just exported the functionality here 208 208 00:08:58,750 --> 00:09:00,143 into a new function. 209 209 00:09:02,430 --> 00:09:04,180 So let's grab this 210 210 00:09:04,180 --> 00:09:07,453 and put it here at the top of the scope. 211 211 00:09:08,670 --> 00:09:11,970 And so for now, just to keep this working, 212 212 00:09:11,970 --> 00:09:13,853 let's return then this value. 213 213 00:09:15,220 --> 00:09:17,590 All right, and as you see, 214 214 00:09:17,590 --> 00:09:20,363 and let's just make sure by logging in. 215 215 00:09:22,070 --> 00:09:23,750 So as you see, 216 216 00:09:23,750 --> 00:09:26,890 the dates are now still being correctly printed. 217 217 00:09:26,890 --> 00:09:30,210 So we successfully exported this functionality here 218 218 00:09:30,210 --> 00:09:33,810 of displaying the dates into this function. 219 219 00:09:33,810 --> 00:09:37,270 And now we can just implement what I just said. 220 220 00:09:37,270 --> 00:09:40,400 So basically calculating how many days passed since 221 221 00:09:40,400 --> 00:09:42,460 the current date and between 222 222 00:09:42,460 --> 00:09:44,363 the date that we are working with. 223 223 00:09:46,610 --> 00:09:48,150 All right. 224 224 00:09:48,150 --> 00:09:49,860 So let's say 225 225 00:09:49,860 --> 00:09:51,253 const days, 226 226 00:09:52,370 --> 00:09:53,203 past 227 227 00:09:54,410 --> 00:09:56,640 and between. 228 228 00:09:56,640 --> 00:09:57,980 So between right now, 229 229 00:09:57,980 --> 00:09:59,713 there is a new date. 230 230 00:10:03,050 --> 00:10:05,000 And then the second date is the date 231 231 00:10:05,000 --> 00:10:07,393 that we just received here. 232 232 00:10:09,060 --> 00:10:12,010 So let's just print this to the console to see if it works. 233 233 00:10:13,950 --> 00:10:14,783 Okay. 234 234 00:10:16,650 --> 00:10:19,250 So what's all of this here? 235 235 00:10:19,250 --> 00:10:22,733 So we are printing here actually the wrong thing. 236 236 00:10:23,910 --> 00:10:25,703 So we want days past. 237 237 00:10:26,560 --> 00:10:28,423 So that was a mistake, obviously. 238 238 00:10:29,650 --> 00:10:31,550 But it's still not correct. 239 239 00:10:31,550 --> 00:10:32,383 And 240 240 00:10:33,830 --> 00:10:35,693 okay, I have another mistake. 241 241 00:10:36,540 --> 00:10:38,890 So probably you saw this already. 242 242 00:10:38,890 --> 00:10:42,863 So I did not even call the calc days past function. 243 243 00:10:44,050 --> 00:10:45,830 But now it should be good. 244 244 00:10:45,830 --> 00:10:48,973 And indeed, now we have our days here. 245 245 00:10:50,010 --> 00:10:51,140 Alright. 246 246 00:10:51,140 --> 00:10:54,500 And now let's actually round them. 247 247 00:10:54,500 --> 00:10:57,510 Okay, so that's what I was just saying earlier. 248 248 00:10:57,510 --> 00:11:00,593 So that we should probably round these dates. 249 249 00:11:01,780 --> 00:11:04,610 So we already learned how to do that. 250 250 00:11:04,610 --> 00:11:06,960 So math dot round, 251 251 00:11:06,960 --> 00:11:07,923 all of this. 252 252 00:11:09,453 --> 00:11:11,743 And so this looks a lot better now. 253 253 00:11:12,820 --> 00:11:14,800 Now, let's actually modify 254 254 00:11:14,800 --> 00:11:16,830 or dates here a little bit. 255 255 00:11:16,830 --> 00:11:18,570 And you should do the same. 256 256 00:11:18,570 --> 00:11:21,170 And what I'm going to do is to make 257 257 00:11:21,170 --> 00:11:25,060 one date yesterday, and then also a date, 258 258 00:11:25,060 --> 00:11:27,313 like three or four days ago. 259 259 00:11:29,070 --> 00:11:31,310 So see what's your current date, 260 260 00:11:31,310 --> 00:11:33,630 and then simply subtract one. 261 261 00:11:33,630 --> 00:11:35,920 So for me, it's August 2, 262 262 00:11:35,920 --> 00:11:38,760 so I'm going to use August 1, 263 263 00:11:38,760 --> 00:11:39,743 and then also, 264 264 00:11:40,890 --> 00:11:42,110 July 265 265 00:11:42,110 --> 00:11:43,670 28. 266 266 00:11:43,670 --> 00:11:46,090 And maybe another July here 267 267 00:11:46,090 --> 00:11:47,300 25, 268 268 00:11:47,300 --> 00:11:48,133 or maybe 269 269 00:11:48,133 --> 00:11:48,966 26. 270 270 00:11:50,470 --> 00:11:52,790 Okay, it's just so that we can see, 271 271 00:11:52,790 --> 00:11:56,000 like the yesterday or three days ago, 272 272 00:11:56,000 --> 00:11:57,970 or something like that. 273 273 00:11:57,970 --> 00:12:00,530 Alright, so do that now. 274 274 00:12:00,530 --> 00:12:03,603 And then let's go back here to or function. 275 275 00:12:04,486 --> 00:12:07,620 Now, then we want to implement some logic based 276 276 00:12:07,620 --> 00:12:08,873 on this day past. 277 277 00:12:10,260 --> 00:12:11,720 So if 278 278 00:12:11,720 --> 00:12:13,550 days past 279 279 00:12:13,550 --> 00:12:15,650 is zero, 280 280 00:12:15,650 --> 00:12:18,570 and so basically, that is, 281 281 00:12:18,570 --> 00:12:20,580 if we do something today, 282 282 00:12:20,580 --> 00:12:23,040 then actually the string that we want to print 283 283 00:12:23,040 --> 00:12:27,410 is not the current date, but instead today. 284 284 00:12:27,410 --> 00:12:30,500 All right, then if one day has passed, 285 285 00:12:30,500 --> 00:12:33,173 we want to return yesterday. 286 286 00:12:35,980 --> 00:12:37,070 Okay, 287 287 00:12:37,070 --> 00:12:38,240 next up, 288 288 00:12:38,240 --> 00:12:39,630 if 289 289 00:12:39,630 --> 00:12:43,990 well, let's say if the number of days past 290 290 00:12:43,990 --> 00:12:46,150 is within the last week. 291 291 00:12:46,150 --> 00:12:50,130 So that's less or equal seven, 292 292 00:12:50,130 --> 00:12:52,493 and then we will return the number of days. 293 293 00:12:54,850 --> 00:12:55,990 So days, 294 294 00:12:55,990 --> 00:12:56,823 past 295 295 00:12:58,530 --> 00:12:59,600 days, 296 296 00:12:59,600 --> 00:13:00,433 ago 297 297 00:13:01,770 --> 00:13:03,490 and else, 298 298 00:13:03,490 --> 00:13:05,100 so only if 299 299 00:13:05,100 --> 00:13:07,630 more than seven days have passed, 300 300 00:13:07,630 --> 00:13:11,163 only then we want to return the actual date. 301 301 00:13:13,510 --> 00:13:16,520 Okay, does that make sense? 302 302 00:13:16,520 --> 00:13:19,580 So let's save and see if it works. 303 303 00:13:19,580 --> 00:13:21,743 And yes, beautiful. 304 304 00:13:22,640 --> 00:13:24,850 So that's yesterday, five days ago, 305 305 00:13:24,850 --> 00:13:27,060 seven days ago. 306 306 00:13:27,060 --> 00:13:29,943 And then here are the other dates right here. 307 307 00:13:31,040 --> 00:13:32,670 So that's beautiful. 308 308 00:13:32,670 --> 00:13:33,960 Great. 309 309 00:13:33,960 --> 00:13:37,540 Let's now just do something. 310 310 00:13:37,540 --> 00:13:42,470 And actually, let's transfer like 500 to Jessica Davis. 311 311 00:13:42,470 --> 00:13:45,100 And that's gonna be the other way around. 312 312 00:13:45,100 --> 00:13:47,610 Jessica Davis, 500. 313 313 00:13:47,610 --> 00:13:52,293 And so now we should get one log here with today. 314 314 00:13:54,670 --> 00:13:57,590 Yes, indeed, there is today. 315 315 00:13:57,590 --> 00:14:00,330 And now if we log in as Jessica Davis, 316 316 00:14:00,330 --> 00:14:02,350 we should get the same. 317 317 00:14:02,350 --> 00:14:05,960 So now we have a deposit coming from today. 318 318 00:14:05,960 --> 00:14:08,810 And actually, we also have something from seven days ago. 319 319 00:14:10,000 --> 00:14:12,080 So great, that's amazing. 320 320 00:14:12,080 --> 00:14:13,310 If you ask me, 321 321 00:14:13,310 --> 00:14:16,640 that we are capable of now doing something like this, 322 322 00:14:16,640 --> 00:14:19,280 which looks like a real web application 323 323 00:14:19,280 --> 00:14:21,410 that you might use every day. 324 324 00:14:21,410 --> 00:14:22,890 All right. 325 325 00:14:22,890 --> 00:14:26,820 Now, maybe the logic here is a bit confusing with all 326 326 00:14:26,820 --> 00:14:28,350 of these returns. 327 327 00:14:28,350 --> 00:14:30,330 But that's completely normal. 328 328 00:14:30,330 --> 00:14:35,240 So as once we return, the function stops executing. 329 329 00:14:35,240 --> 00:14:38,950 And so these other returns will then never be reached. 330 330 00:14:38,950 --> 00:14:41,540 And so this is a pretty common technique. 331 331 00:14:41,540 --> 00:14:44,750 And actually, we wouldn't even need this else. 332 332 00:14:44,750 --> 00:14:46,910 So if I just remove this here, 333 333 00:14:46,910 --> 00:14:50,100 then all of this code will only be executed 334 334 00:14:50,100 --> 00:14:53,790 if all of these here are not executed. 335 335 00:14:53,790 --> 00:14:56,060 So only if all of these here are false. 336 336 00:14:56,060 --> 00:14:58,403 The rest of the code is even executed. 337 337 00:15:00,520 --> 00:15:02,623 So you see it works the exact same way. 338 338 00:15:05,590 --> 00:15:06,510 Awesome. 339 339 00:15:06,510 --> 00:15:09,330 So our application is even better now. 340 340 00:15:09,330 --> 00:15:11,260 And in the next two lectures, 341 341 00:15:11,260 --> 00:15:13,790 we will then do what I mentioned earlier, 342 342 00:15:13,790 --> 00:15:16,370 which is internationalization, 343 343 00:15:16,370 --> 00:15:19,930 which is to basically format these dates, 344 344 00:15:19,930 --> 00:15:21,620 and also these numbers here, 345 345 00:15:21,620 --> 00:15:24,883 according to each of the countries of these accounts. 26776