pve-eslint/eslint/docs/rules/no-array-constructor.md
Thomas Lamprecht ebb53d86fb update to 7.1.0 sources
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2020-05-25 13:00:39 +02:00

1.0 KiB

disallow Array constructors (no-array-constructor)

Use of the Array constructor to construct a new array is generally discouraged in favor of array literal notation because of the single-argument pitfall and because the Array global may be redefined. The exception is when the Array constructor is used to intentionally create sparse arrays of a specified size by giving the constructor a single numeric argument.

Rule Details

This rule disallows Array constructors.

Examples of incorrect code for this rule:

/*eslint no-array-constructor: "error"*/

Array(0, 1, 2)

new Array(0, 1, 2)

Examples of correct code for this rule:

/*eslint no-array-constructor: "error"*/

Array(500)

new Array(someOtherArray.length)

[0, 1, 2]

When Not To Use It

This rule enforces a nearly universal stylistic concern. That being said, this rule may be disabled if the constructor style is preferred.