export const Example = ({ loadOnlyOnce }) => {
useEffect(() => {
loadOnlyOnce()
}, [loadOnlyOnce]) // ← WHY?
}
-
Enable
#enable-devtools-experiments
flag inchrome://flags
section. -
Open Chorme Devtools and check
Settings > Experiments > Allow extensions to load custom stylesheets
. -
Create the following four files in a dedicated folder.
3.1.
devtools.html
<html> <head></head> <body><script src="devtools.js"></script></body>
Revised: 2019-11-28 16:16 GMT-6
This is a list of the key resources I have found useful. If you know of others, please post in a comment below, and I will add to this list.
I have tried to order this list in the order that, to me, is best for learning JXA from scratch. We all learn a bit diferently, so adjust to suit your style/needs. Please post if you have suggestions on learning JXA.
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |