lib/lexer.js
function(len){
    var chunk = len[0];
    len = chunk ? chunk.length : len;
    this.str = this.str.substr(len);
    if (chunk) {
      this.move(chunk);
    } else {
      this.column += len;
    }
  }
function(len){
    var chunk = len[0];
    len = chunk ? chunk.length : len;
    this.str = this.str.substr(len);
    if (chunk) {
      this.move(chunk);
    } else {
      this.column += len;
    }
  }
function ( len ) { var chunk = len [ 0 ] ; len = chunk ? chunk . length : len ; this . str = this . str . substr ( len ) ; if ( chunk ) { this . move ( chunk ) ; } else { this . column += len ; } }
Consume the given `len`.

@param {Number|Array} len
@api private
Consume the given len .