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small-rules

No Array Size Assignment

ErrorAuto-fixableRoblox
small-rules/no-array-size-assignment

Disallow array append assignments using array[array.size()] = value (roblox-ts) or array[array.length] = value (standard) and prefer push-based appends.

Diagnostic Messages

usePush
Do not append with array[array.size()] = value or array[array.length] = value. Use array.push(value) instead.

Configuration

This rule accepts one options object after the severity.

allowAutofixOptional

Allow the fixer to replace safe append assignments with array.push(value).

Type
boolean
Default
false
environmentOptional

Array environment mode: 'roblox-ts' checks array[array.size()]; 'standard' checks array[array.length].

Type
"roblox-ts" | "standard"
Default
roblox-ts
{
  "jsPlugins": [
    "@pobammer-ts/small-rules"
  ],
  "rules": {
    "small-rules/no-array-size-assignment": [
      "error",
      {
        "allowAutofix": false,
        "environment": "roblox-ts"
      }
    ]
  }
}

Examples

array size index assignment
array[array.size()] = value;

After auto-fix

array.push(value);
append with push
array.push(value);
No Array Constructor ElementsRelatedConstructor initialization and size/length append assignment are both roblox-ts array construction style.No Array Constructor Index AssignmentRelatedIndex fills and size/length appends are two non-push ways to build arrays that should collapse to literals/push.