Method removeCharAt

src/frontend/pty.ts:444–452

(str: string, ix: number)

    }

    private static removeCharAt(str: string, ix: number): string {
        if (ix === 0) {
            return str.slice(1);
        } else if (ix >= (str.length - 1)) {
            return str.slice(0, -1);
        } else {
            return str.slice(0, ix) + str.slice(ix + 1);
        }
    }

    private static insertCharsAt(str: string, chr: string, ix: number): string {
        if (ix === 0) {