no-import-assign
NOTE: this rule is part of the
recommended rule set.Enable full set in
deno.json:{
"lint": {
"rules": {
"tags": ["recommended"]
}
}
}Enable full set using the Deno CLI:
deno lint --rules-tags=recommended
This rule can be explictly included to or excluded from the rules present in the current tag by adding it to the
include or exclude array in deno.json:{
"lint": {
"rules": {
"include": ["no-import-assign"],
"exclude": ["no-import-assign"]
}
}
}Disallows reassignment of imported module bindings.
ES module import bindings should be treated as read-only since modifying them during code execution will likely result in runtime errors. It also makes for poor code readability and difficult maintenance.
Invalid:
import defaultMod, { namedMod } from "./mod.js";
import * as modNameSpace from "./mod2.js";
defaultMod = 0;
namedMod = true;
modNameSpace.someExportedMember = "hello";
modNameSpace = {};
Valid:
import defaultMod, { namedMod } from "./mod.js";
import * as modNameSpace from "./mod2.js";
// properties of bound imports may be set
defaultMod.prop = 1;
namedMod.prop = true;
modNameSpace.someExportedMember.prop = "hello";