oxc/bad-match-all-arg
Require the g flag on a regular expression passed to matchAll()
matchAll() throws a TypeError when its regular expression doesn't have the g flag. The code parses and only fails when that line runs.
The rule checks a regular expression literal, new RegExp() and RegExp(), written in the call or kept in a variable. If the flags aren't a plain string, it can't tell and reports nothing. A string argument is fine, because matchAll() turns it into a global regular expression.
Configure#
Off by default. To turn it on:
bunfig.toml
[lint.rules]
"oxc/bad-match-all-arg" = "error" # or "warn"Examples#
example.js2 problems
const words = [...text.matchAllGlobal flag (g) is missing in the regular expression supplied to the matchAll method.(/\w+/)];
const tag = new RegExp("#\\w+", "i");
for (const match of text.matchAllGlobal flag (g) is missing in the regular expression supplied to the matchAll method.(tag)) {
tags.push(match[0]);
}example.jsNo problems
const words = [...text.matchAll(/\w+/g)];
const tag = new RegExp("#\\w+", "gi");
for (const match of text.matchAll(tag)) {
tags.push(match[0]);
}
const commas = [...text.matchAll(",")];