This: \d{1,3}(,\d{3})*(\.\d\d)?|\.\d\d matches all of the following numbers: 1 12 .99 12.34 12,345.67 999,999,999,999,999.99 If you want to exclude numbers like 123a (street addresses for example), or 123.123 (numbers with more than 2 digits after the decimal point), try: (?<=\s|^)(\d{1,3}(,\d{3})*(\.\d\d)?|\.\d\d)(?=\s|$) A little demo (I guessed you’re using PHP): $text = “666a 1 fd 12 dfsa … Read more
This is my generic solution for the problem (I have blogged about this here): var toFixed:Function = function(number:Number, factor:int) { return Math.round(number * factor)/factor; } For example: trace(toFixed(0.12345678, 10)); //0.1 Multiply 0.12345678 by 10; that gives us 1.2345678. When we round 1.2345678, we get 1.0, and finally, 1.0 divided by 10 equals 0.1. Another example: … Read more
The theoretical answers from everyone else are all neat, but let’s be pragmatic. ActionScript provides the tools you need so that you don’t even have to write a loop in this case! First, note that Math.min() and Math.max() can take any number of arguments. Also, it’s important to understand the apply() method available to Function … Read more
This can be done through the youtube player API: http://jsfiddle.net/7Gznb/ Working example: <div id=”player”></div> <script src=”http://www.youtube.com/player_api”></script> <script> // create youtube player var player; function onYouTubePlayerAPIReady() { player = new YT.Player(‘player’, { width: ‘640’, height: ‘390’, videoId: ‘0Bmhjf0rKe8’, events: { onReady: onPlayerReady, onStateChange: onPlayerStateChange } }); } // autoplay video function onPlayerReady(event) { event.target.playVideo(); } // … Read more
This is a classic problem with Internet games and contests. Your Flash code works with users to decide a score for a game. But users aren’t trusted, and the Flash code runs on the user’s computer. You’re SOL. There is nothing you can do to prevent an attacker from forging high scores: Flash is even … Read more
Rejection sampling (such as in your solution) is the first thing that comes to mind, whereby you build a lookup table with elements populated by their weight distribution, then pick a random location in the table and return it. As an implementation choice, I would make a higher order function which takes a spec and … Read more