Wrapper-TS

Wrap selected TypeScript code in common control-flow blocks with one command, with the indentation and formatting kept intact.

Select some code, open the Command Palette, and pick a wrapper. The block is built around your code and the cursor jumps to the parts you usually need to edit (conditions, loop variables, and so on).

Features

• Wraps whole lines, so a selection that starts or ends mid-line still produces clean output.
• Works with no selection: the current line gets wrapped.
• Keeps the original relative indentation of your code and indents it one extra level inside the block.
• Respects your editor's tabs or spaces setting, and LF or CRLF line endings.
• Leaves blank lines empty (no trailing whitespace).
• Tab stops let you fill in the condition, value, or loop variable right after wrapping.

Commands

Open the Command Palette (Ctrl+Shift+P / Cmd+Shift+P) and type Wrapper-TS.

Example

Select these lines:

    const user = await getUser(id);
    console.log(user.name);

Run Wrapper-TS: Wrap Selection in Try Catch:

    try {
        const user = await getUser(id);
        console.log(user.name);
    } catch (error) {
        console.error(error);
    }

Nested code keeps its structure:

function run(items: string[]) {
    for (const item of items) {
        process(item);
    }
}

Select the for block and run Wrap Selection in If Else:

function run(items: string[]) {
    if (condition) {
        for (const item of items) {
            process(item);
        }
    } else {
        // TODO
    }
}

Tips

• Press Tab after wrapping to move between the editable parts, and Esc to leave snippet mode.
• Want a shortcut? Add one in Preferences: Open Keyboard Shortcuts (JSON):

{
    "key": "ctrl+alt+t",
    "command": "wrapperTSSelection.tryCatch",
    "when": "editorTextFocus"
}

Requirements

VS Code 1.107.0 or newer.

Extension Settings

This extension does not add any settings. It follows your editor's indentation settings.

Known Issues

• Only the primary selection is wrapped (multi-cursor is not supported yet).
• The extra indentation also applies to the contents of multi-line template strings inside the selection.

Release Notes

0.0.1

• Initial release: try/catch, if/else, if/else if, switch/case, for, while, and do/while wrappers.

License

MIT