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Disallow aliasing this (no-this-alias)

This rule prohibits assigning variables to this.

Rule Details

Rationale from TSLint:

Assigning a variable to this instead of properly using arrow lambdas may be a symptom of pre-ES6 practices or not managing scope well.

Instead of storing a reference to this and using it inside a function () {:

const self = this;

setTimeout(function () {

Use () => arrow lambdas, as they preserve this scope for you:

setTimeout(() => {

Examples of incorrect code for this rule:

(see the rationale above)

Examples of correct code for this rule:

(see the rationale above)


You can pass an object option:

"@typescript-eslint/no-this-alias": [
"allowDestructuring": false, // Disallow `const { props, state } = this`; true by default
"allowedNames": ["self"] // Allow `const self = this`; `[]` by default

When Not To Use It

If you need to assign this to variables, you shouldnโ€™t use this rule.


  • โœ… Recommended
  • ๐Ÿ”ง Fixable
  • ๐Ÿ’ญ Requires type information