Demo: Theme Blue

Using the following classes:

• .dyCodeHighlighter
• .line-numbers
• .theme-blue

Using the following attributes:

• data-dyCodeHighlighter-highlight="11,20,22"

/**
 * This is a sample program to print the following pattern.
 *
 * H
 * Ha
 * Hap
 * Happ
 * Happy
 */
var
  str = "Happy",
  len = str.length,
  r,
  c,
  pattern;

for (r = 0; r < len; r++) {
  pattern = '';
  for (c = 0; c <= r; c++) {
    pattern += str[c];
  }
  console.log(pattern);
}