系統設計者的話：學英文根本不用背，你講中文，你有在背中文嗎？學英文也是一樣的道理，那是自然而然就會的東西，用背的方式最後肯定都是不行的。 更多...

最好的學習就是有英文的父母，不斷的跟你說話、耐心的教導你，時間長了，你也就慢慢就融入其中了。

但是我們沒有英文父母怎麼辦？看影片學英文就學的起來嗎？學不起來。

我們從小到大，也看過了不少英文電影，至少也看過1、200部也跑不掉，但是為什麼看了這麼多的英文電影，英文還是很爛呢？

主要的原因是我們沒有從基礎性的強化學習。舉個例子，西方的幼兒出生時，他至少聽了各種大人講英文至少聽了2年，才慢慢開始說英文、與大人互動。

而且都是一字一句慢慢的說、慢慢的教、漸進式的、慢慢的、越來越習慣、越來越聽的懂、越來越會說的過程。

那麼我們看的影片、電影過程中，都是大人成熟型的講話速度、方式、語調，我們怎麼可能跟的上？

一旦跟不上，思想中就會產生覺的好難哦、我不行種種念頭，那麼產生了這種潛在式的排斥心理作用，那麼你就更難學的會了。


所以我們必須打好基礎、深厚的基礎，萬丈高樓平地起，唯有打下深厚的基礎，後面你走的路才會越來越順。

程式界裏有句話，程式債欠的越多，最後就只能放棄。學英文也是一樣，英文單字債欠的越多，你就直接上來文法、句型、語調，最後也只能放棄。

基於上述的思維，我打造了這套系統，從最基礎的單字學習起，不斷的強化、加深你對這個單字的聽力，透過各式各樣的影片、各式各樣的人、各種不同的場景。

就只是為了訓練一個單字的聽力，無數的人跟你講同一個單字，講個20遍、50篇、100遍(且不重覆)，我就不信學不起來。


這套系統做出來後，我自己在使用的過程中，確實真的能聽出來他們講的這個單字，而且他們講的速度再快也能聽的出來。

能聽的出來，就知道他講的大概意思；能夠知道他講的大概意思，就能夠用幾個簡單的單字回應；能夠回應，也就能夠對話；當能夠對話，就能夠再修正文法、句型、語調。


我的目地就是希望自己至少能聽的懂人家在說什麼，用英文跟人家對話，大家共同努力、學習。若有其它想法或對這套系統設計的建議，也可以與我聯絡：ichich2013@gmail.com

[JSConfUS 2013] Peter Flynn: Performance Tuning Secrets
觀看次數：383
intercalating
this
is
talk
about
javascript
performance
tuning
secrets
so
timeline
panel
and
the
profiler
this
is
repo
along
with
the
slides
there's
beta
back
when
webkit's
javascript
it's
also
written
in
javascript
and
it's
javascript
code
that's
over
ten
megabytes
of
j's
files
so
it's
a
very
modern
browsers
you
get
sub
millisecond
browser
and
when
you're
running
in
the
browser
there's
a
lot
of
other
stuff
browser
native
rendering
stuff
is
javascript
is
not
actually
what's
mystery
black
boxes
javascript
vm
it
browser
native
rendering
stuff
and
then
javascript
and
the
vm
it's
running
in
it'll
have
a
little
bit
of
miscellaneous
all
who
hasn't
seen
the
timeline
panel
anything
that's
really
rendering
generic
you
sort
of
blinded
you
that
the
browser
gives
you
what's
going
on
you
that
it's
very
manually
driven
workflow
for
performance
regressions
automatically
on
every
check-in
and
called
the
telemetry
framework
it's
simulating
clicks
and
and
scrolling
there's
a
there's
a
special
API
that
is
the
telemetry
framework
runs
chrome
it
just
for
simulating
scrolling
accurately
and
they've
also
built
a
spin-off
web
view
visualizing
how
your
for
assessing
rendering
performance
i'm
about
it
similarly
there's
a
mode
where
you
can
see
repaint
rectangles
overlaid
can
see
compositing
layers
annotated
browser
compositing
on
the
other
hand
but
again
this
is
pretty
well-documented
rendering
and
compositing
in
the
browser
rendering
on
any
given
browser
tab
there's
a
compositor
thread
your
javascript
that's
where
layout
happens
that's
where
repainting
happens
D
key
to
pan
horizontally
and
you
can
millisecond
intervals
so
that's
this
is
in
in
chrome
there's
run
task
calls
v8
that's
requestanimationframe
layers
etc
so
the
width
of
the
bar
is
consistently
gets
the
same
color
on
in
your
particular
tabs
compositor
latency
is
a
lot
trickier
than
regiment
during
rendering
frequency
or
framerate
of
chrome
as
they
do
some
rendering
refactoring
it's
going
to
add
more
and
more
tools
to
begin
visualizing
what's
going
on
with
gpu
textures
and
there's
some
cases
where
the
timeline
hover
over
a
repaint
in
the
timelines
it'll
show
you
overlaid
on
the
page
the
bounds
of
the
repaint
you
can't
get
that
happening
at
at
a
more
fine-grained
happens
outside
of
javascript
there's
like
off
by
2x
or
3x
it's
just
well-established
this
is
the
kind
of
dom
rendering
column
back
in
the
day
things
like
rendering
latency
using
this
meter
requestanimationframe
base
timing
trickier
to
measure
the
frames
per
web-based
app
so
in
cases
like
that
rendering
column
let's
switch
over
and
that
for
memory
profiling
the
timeline
increasing
constantly
you
can
see
the
timeline
that's
showing
javascript
execution
recent
versions
of
chrome
on
and
at
a
pretty
fine-grained
level
those
two
snapshots
are
red
flags
are
let's
talk
about
cpu
profiling
which
is
visualization
of
the
data
and
what's
there's
two
different
panels
here
javascript
activities
so
the
y-axis
is
the
chrome
tracing
view
where
it's
a
tracing
view
so
the
x-axis
here
roughly
where
they're
essentially
randomly
actually
automatically
kick
off
profiling
sessions
to
get
recorded
in
overlapping
they
don't
have
to
be
show
up
in
the
chrome
tracing
view
so
threaded
view
of
what's
going
on
so
needs
your
own
goals
and
targets
all
turns
out
that
v8
s--
profiler
actually
instances
of
chrome
that
you
have
open
flags
generates
a
ping
file
it'll
chug
for
a
concerned
with
browser
rendering
v8
is
currently
running
optimized
code
not
bottleneck
by
javascript
at
all
but
in
things
that
are
bottlenecking
on
javascript
you'll
see
a
lot
of
either
a
crappy
iterative
process
like
navigating
this
data
more
interactively
this
in
an
interactive
visualizer
so
can
get
interactive
visualizers
onto
you
scroll
horizontally
is
you
see
I
horizontally
and
then
to
scroll
it's
such
an
intuitive
way
of
navigating
at
the
milliseconds
and
then
rerun
the
Script
in
d3
based
visualization
of
this
things
aren't
getting
optimized
when
you
functions
are
running
optimized
in
the
function
that's
not
optimized
so
now
you
to
what's
up
and
why
it
didn't
get
optimized
and
that's
where
the
third
v8
functions
in
there
and
it'll
actually
like
chrome
tracing
and
even
the
dev
javascript
performance
number
one
complaints
about
slowness
whole
flow
from
the
time
the
user
clicks
renders
on-screen
the
browser
knows
that
or
gmail
do
saves
asynchronously
in
the
measuring
that
stuff
programmatically
so
standardize
things
like
the
scrolling
with
the
chrome
telemetry
stuff
so
I
requestanimationframe
so
we've
gotten
a
can't
do
that
look
at
this
you're
jesper
comm
says
about
this
it's
way
million
iterations
per
sec
those
in
a
targeted
way

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