Method nth

lib/utils/trace.js:283–290

(n, kind)

  // Read content of the n-th file of `kind`. Binary kinds (screenshot) are
  // returned as Buffer; text kinds as utf8 string.
  nth(n, kind) {
    const p = this.pathAt(n, kind)
    if (!p) return null
    try {
      if (kind === 'screenshot') return fs.readFileSync(p)
      return fs.readFileSync(p, 'utf8')
    } catch { return null }
  }

  first(kind) { return this.nth(0, kind) }
  last(kind)  { return this.nth(-1, kind) }