title | rule_type | related_rules | ||
---|---|---|---|---|
no-array-constructor |
suggestion |
|
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.
This rule disallows Array
constructors.
Examples of incorrect code for this rule:
:::incorrect
/*eslint no-array-constructor: "error"*/
Array(0, 1, 2)
new Array(0, 1, 2)
:::
Examples of correct code for this rule:
:::correct
/*eslint no-array-constructor: "error"*/
Array(500)
new Array(someOtherArray.length)
[0, 1, 2]
:::
This rule enforces a nearly universal stylistic concern. That being said, this rule may be disabled if the constructor style is preferred.