text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
|---|---|---|
for the counter so we are going to set | 5,037.53 | 4.29 |
the value of counter equal to zero for | 5,039.18 | 5.37 |
example and so now what needs to change | 5,041.82 | 4.35 |
I'll go ahead and get rid of the | 5,044.55 | 3.33 |
interval so that it only happens when I | 5,046.17 | 3.6 |
click on it but what should this count | 5,047.88 | 4.44 |
function actually do well first let me | 5,049.77 | 5.37 |
get the value of the counter counter is | 5,052.32 | 5.79 |
going to be whatever local storage get | 5,055.14 | 5.67 |
item counter is I'm gonna get the | 5,058.11 | 5.37 |
counter out of local storage I'm going | 5,060.81 | 5.31 |
to increment it counter plus plus we'll | 5,063.48 | 4.89 |
go ahead and set the value of this h1 | 5,066.12 | 3.51 |
elements innerhtml | 5,068.37 | 3.96 |
equal to that counter but the last step | 5,069.63 | 5.37 |
is I'll also do local storage dot set | 5,072.33 | 6.36 |
item counter is equal to the new value | 5,075 | 7.29 |
of counter so what I've done here is to | 5,078.69 | 5.73 |
say that when I click the button count | 5,082.29 | 3.93 |
function is going to run we're first | 5,084.42 | 3.84 |
going to go into local storage get | 5,086.22 | 4.5 |
value for the key counter whatever the | 5,088.26 | 4.35 |
value of counter happens to be save it | 5,090.72 | 3.27 |
inside of this variable called counter | 5,092.61 | 3.03 |
we'll go ahead and increment that | 5,093.99 | 3.54 |
variable setting it equal to itself plus | 5,095.64 | 5.07 |
one update the h1s innerhtml same as | 5,097.53 | 4.56 |
before just to update what we actually | 5,100.71 | 4.38 |
see on the page but then go ahead and | 5,102.09 | 6.15 |
local storage set item counter gets set | 5,105.09 | 8.13 |
to counter for example so now let's go | 5,108.24 | 9.15 |
ahead and see what's going to happen if | 5,113.22 | 7.44 |
I go ahead and open counter dot HTML we | 5,117.39 | 7.71 |
see 0 we count 1 2 3 4 5 everything so | 5,120.66 | 6.54 |
far so good now watch what happens if i | 5,125.1 | 5.15 |
refresh this page i refresh the page and | 5,127.2 | 4.95 |
alright that seems a little bit strange | 5,130.25 | 4.42 |
at 0 let me try counting and see what | 5,132.15 | 4.77 |
happens i press count and alright the | 5,134.67 | 4.8 |
count changed to 6 so it seems like it | 5,136.92 | 4.56 |
did remember that i counted up to 5 0 1 | 5,139.47 | 4.23 |
2 3 4 5 but when i refresh the page it | 5,141.48 | 4.38 |
still showed me 0 but then let me count | 5,143.7 | 3.6 |
up to the number 6 and I can keep | 5,145.86 | 3.78 |
counting 7 8 9 10 what happens if i | 5,147.3 | 3.93 |
refresh the page now I can try it i | 5,149.64 | 4.77 |
refresh the page I've gone back to 0 but | 5,151.23 | 5.25 |
I count and okay now I'm at 11 so | 5,154.41 | 3.96 |
somehow I am still remembering but the | 5,156.48 | 3.6 |
first time it's still giving me 0 every | 5,158.37 | 4.5 |
time why might that be well if you look | 5,160.08 | 5.01 |
back at counter dot HTML you'll notice | 5,162.87 | 3.87 |
that the reason is just inside the body | 5,165.09 | 3.81 |
of the page the initial value of the h1 | 5,166.74 | 4.5 |
is just always 0 so if I want to fix | 5,168.9 | 4.26 |
that then what I need the same is when | 5,171.24 | 4.11 |
the Dom content is loaded go ahead and | 5,173.16 | 5.97 |
get document query selector h1 go ahead | 5,175.35 | 5.34 |
and update the innerhtml | 5,179.13 | 6.68 |
equal to whatever local storage get item | 5,180.69 | 8.16 |
counter happens to be so every time I | 5,185.81 | 5.17 |
open the page even before I click the | 5,188.85 | 3.87 |
button even before the event listener is | 5,190.98 | 3.6 |
triggered I'd like to say go ahead and | 5,192.72 | 3.78 |
replace this heading update its inner | 5,194.58 | 4.95 |
HTML to be the result of getting the | 5,196.5 | 5.54 |
counter out of local storage for example | 5,199.53 | 5.76 |
so now for refresh the page it's all at | 5,202.04 | 5.38 |
11 I can update update update click | 5,205.29 | 4.32 |
again some number of times bring it up | 5,207.42 | 4.47 |
to 18 for example refresh the page and | 5,209.61 | 4.35 |
it stays at the number 18 and no matter | 5,211.89 | 3.72 |
what value I get it to it's going to | 5,213.96 | 3.27 |
store that number inside of local | 5,215.61 | 3.51 |
storage such that when i refresh the | 5,217.23 | 4.349 |
page that number is going to stay there | 5,219.12 | 4.229 |
we can actually see the value inside of | 5,221.579 | 3.721 |
local storage but again going into | 5,223.349 | 4.98 |
Chrome's inspector I go into Chrome if I | 5,225.3 | 6.419 |
go to the application tab and I go to | 5,228.329 | 6.3 |
local storage here on the Left I can see | 5,231.719 | 4.47 |
that I have a value for key counter | 5,234.629 | 3.48 |
whose value in this case happens to be | 5,236.189 | 3.54 |
28 and you could go into local storage | 5,238.109 | 3.27 |
you can manipulate this value you could | 5,239.729 | 3.27 |
delete it if you want but this just goes | 5,241.379 | 3.12 |
to show you that we have now stored this | 5,242.999 | 4.41 |
value inside of my browser such that on | 5,244.499 | 4.68 |
subsequent visits if this page gets | 5,247.409 | 3.81 |
loaded again we can access that value | 5,249.179 | 4.55 |
from inside of the application as well | 5,251.219 | 5.07 |
and so now we've been able to see how | 5,253.729 | 4.45 |
our pages are able to store data in | 5,256.289 | 3.84 |
order to just make the user experience a | 5,258.179 | 3.42 |
little bit better if we want the user to | 5,260.129 | 3.39 |
be able to have information remembered | 5,261.599 | 3.9 |
from the last time they visited a | 5,263.519 | 3.33 |
particular page we can sometimes | 5,265.499 | 5.04 |
actually be quite helpful all right so | 5,266.849 | 4.92 |
now we've seen a lot of features of | 5,270.539 | 3 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.