This document introduces ECMAScript modules and compares them to CommonJS modules. It discusses key features such as imports, exports, package.json, and the resolution algorithm. It also covers differences like mandatory file extensions and the lack of a NODE_PATH in ECMAScript modules.

1. ECMASCCRIPT MODULES
Dtrodoction
enabling
packagejSon pe field
Packaae &ope cle extengion
-inpot-type blag
pacRag&
package entryPoints.
Main entr point exponE
SUbpath expor
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ackage exportsallbacks
exportSUgr
Conolitional expors
nested COnoditiong
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self-rajerencenga paakage using t ra.
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lual paCkage aazard
writing
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mintmizing hazards
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Coport Cpecifiers
terminelo9
data mper
cmportmeta.
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2. dikferences betuween E meclolel and CommonTS.
mondotory hile extensions
no NODE-PATH
-ctirnomeno require expoc modole. exporS,--kename, -eki
o reqvire iresolve
no roqvire. extendons
no equire. ache
URL-based paths
cntercperabilityp with Common ds.
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Cmport exprassions
CemmonIS, JSON, and native modules.
bulthin modules
experimental J&ON medutey
Oxperimental wAgM medleotes
experimental tep-leval Qwad
Rpermental lbodars
hooks
resolve hok
gethormat hook
qet Soore hok
transhomSource hook
getCalobal Hrelbad Code hook
dynamieInstonhicte hcok
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xample
HTTPS (oader
transpiler leadar
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3. resalution olgcrithm
aatores
esalver algarihm
attomizing ECM specihier resdution algarithm.
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