JetBrains Fleet 1.36 Help

Coding assistance in JavaScript and TypeScript

In Smart Mode, JetBrains Fleet provides coding assistance features for your JavaScript or TypeScript projects. They help you avoid mistakes and write code in an efficient manner.

Code completion

As you type, JetBrains Fleet suggests completion options. The suggestions are based on a number of factors, such as the available code intelligence services, project model, surrounding code, and the visibility of symbols.

Code completion popup

Completion suggestions will appear automatically as you type, but you can also invoke them explicitly by pressing ⌃ Space.

JetBrains Fleet: Basic code completion list

When you use code completion over existing code items, you can either insert the selected completion suggestion before the existing item by pressing Enter or replace the existing identifier with the selected suggestion by pressing Tab.

Code actions

JetBrains Fleet constantly analyzes your code and suggests actions that you might want to perform in the current context. The suggested actions range from correcting errors to refactoring the code at the caret.

A popup with code actions

To see, which actions are available at the caret, press ⌥ ⏎. After you have selected the required action, you can apply it right away or preview the result with ⌘ P.

Code actions preview

Apply a primary quick-fix

  1. Open the Problems popup, which is in the upper-right corner of the window.

  2. Click the issue that you want to fix from the list of problems.

  3. While the issue is selected, press ⌥ ⇧ ⏎.


Type info

Whenever you are not sure what type you are currently working with, you can look it up by pressing ⌘ ⇧ T. JetBrains Fleet will display the static type information for the symbol or expression at the caret.

A popup with type information

Alternatively, just hover over a symbol.

A popup with type information on hover

Parameter info

If you are using a method that has numerous overloads, or just want to look up the required parameters, use ⌘ I.

A popup with parameter information

Live templates

Use live templates to insert common constructs into your code, such as loops, conditions, declarations, or print statements.

Live templates expanding into code constructs in the editor

To expand a code snippet, type the corresponding template abbreviation and press . Keep pressing to jump from one variable in the template to the next one. Press ⇧ ⇥ to move to the previous variable.

Last modified: 11 February 2024