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/** | |
* Takes a string and returns true if its a valid email address. | |
* @param {String} email Email address to be tested for validity. | |
* @return {Boolean} True if valid email, false if not. | |
*/ | |
function isValidEmail(email) { | |
var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/; | |
return regex.test(email); | |
} |
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// from http://scratch99.com/web-development/javascript/convert-bytes-to-mb-kb/ | |
function bytesToSize(bytes) { | |
var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB']; | |
if (bytes == 0) return 'n/a'; | |
var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024))); | |
if (i == 0) return bytes + ' ' + sizes[i]; | |
return (bytes / Math.pow(1024, i)).toFixed(1) + ' ' + sizes[i]; | |
}; |