Method trim

Extension/src/Utility/Process/streams.ts:392–403

* Trim elements from the front of the buffer. * @param count the number of elements to trim (defaults to trimming the whole buffer.)

(keepMaxLines = 0)

     * @param count the number of elements to trim (defaults to trimming the whole buffer.)
     */
    trim(keepMaxLines = 0) {
        // figure out where the new head should be
        const newHead = Math.max(this.head, this.last - keepMaxLines);

        // if we are actually trimming (and the head should move forward), then fill the elements with undefined
        if (newHead > 0) {
            this.#buffer.fill(undefined as unknown as string, this.head, newHead);

            // set the new head position
            this.#head = newHead;
        }
    }

    /** returns a copy of the entire line buffer */
    all() {