$gte operator 205
aggregating data 149, 159–161
algorithms, optimizing 210–210
all function 53–53
analyzing data
JavaScript for 5–7
overview of 19–20
animations, launch 353–356
append function 342, 343
apt-get, Linux 31
arithmetic mean 221
arrays 384–384
asCSV function 134
assert function 127
assumption checking script 17
async-await-parallel model 212
asynchronous coding 8, 45–58
asynchronous operations 55–56, 178
async keyword 57–58
attr function 340
authentication 376–376
authorization 376–376
averages
overview of 221–221
rolling 233–235
await keyword 57–58
background colors 285–287
bad data
identifying 147–148