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-rw-r--r-- | docs/code-quality/lint/linters/eslint-plugin-mozilla/rules/use-includes-instead-of-indexOf.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/docs/code-quality/lint/linters/eslint-plugin-mozilla/rules/use-includes-instead-of-indexOf.rst b/docs/code-quality/lint/linters/eslint-plugin-mozilla/rules/use-includes-instead-of-indexOf.rst new file mode 100644 index 0000000000..bb65ebea2c --- /dev/null +++ b/docs/code-quality/lint/linters/eslint-plugin-mozilla/rules/use-includes-instead-of-indexOf.rst @@ -0,0 +1,21 @@ +use-includes-instead-of-indexOf +=============================== + +Use ``.includes`` instead of ``.indexOf`` to check if something is in an array +or string. + +Examples of incorrect code for this rule: +----------------------------------------- + +.. code-block:: js + + let a = foo.indexOf(bar) >= 0; + let a = foo.indexOf(bar) == -1; + +Examples of correct code for this rule: +--------------------------------------- + +.. code-block:: js + + let a = foo.includes(bar); + let a = foo.indexOf(bar) > 0; |