Method peek

lib/web/CodeMirror/src/util/StringStream.js:20–20

()

  eol() {return this.pos >= this.string.length}
  sol() {return this.pos == this.lineStart}
  peek() {return this.string.charAt(this.pos) || undefined}
  next() {
    if (this.pos < this.string.length)
      return this.string.charAt(this.pos++)