itech9

Exercise 4, asynchronous (async) file processing ..

From: https://github.com/JeffPaine/learnyounode-solutions

var countLines = function (err, fileBuffer){
  // console.log(fileBuffer);
  console.log(fileBuffer.split('\n').length);
};

fs.readFile(process.argv[2], 'utf8', countLines);

Check for zip / postal code :

  if (field.value.search(/^\d{5}$/) != -1) {
    ...
  }

Check for “city, state zip” (space zip..) :

(note the 5\4 zip check.. like anybody would enter a 9 digit zip.. right..)

  if (field.value.search(/([^,]+),\s*(\w{2})\s*(\d{5}(?:-\d{4})?)/) != -1 ) {
    ...
  }

Check for “city, state” :

  if (field.value.search(/([^,]+),\s*(\w{2})/) != -1 ) {
    ...
  }

…

From: http://stackoverflow.com/questions/134845/href-for-javascript-links-or-javascriptvoid0

When building a link that has the sole purpose to run JavaScript code, is it better to

<a href="#" onclick="myJsFunc();">Link</a>

or

<a href="javascript:void(0)" onclick="myJsFunc();">Link</a>

?