eslint-plugin-angular/docs/typecheck-array.md

ESLint rules for AngularJS projects

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# typecheck-array - use `angular.isArray` instead of `typeof` comparisons

You should use the angular.isArray method instead of the default JavaScript implementation (typeof [] === "[object Array]").

## Examples

The following patterns are considered problems;

    /*eslint angular/typecheck-array: 2*/

    // invalid
    Object.prototype.toString.call(someArray) === '[object Array]'; // error: You should use the angular.isArray method

    // invalid
    Array.isArray(someArray) // error: You should use the angular.isArray method

The following patterns are **not** considered problems;

    /*eslint angular/typecheck-array: 2*/

    // valid
    angular.isArray(someArray);

## Version

This rule was introduced in eslint-plugin-angular 0.1.0

## Links

* [Rule source](../rules/typecheck-array.js)
* [Example source](../examples/typecheck-array.js)