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Best ways to teach a beginner to program? [closed]
... helps.
1) FizzBuzz. Start with command line programs. You can write some fun games, or tools, very quickly, and you learn all of the language features very quickly without having to learn the GUI tools first. These early apps should be simple enough that you won't need to use any real debugging to...
Decimal number regular expression, where digit after decimal is optional
...pace & comments in regular expression)
For example, it will match:
123
23.45
34.
.45
-123
-273.15
-42.
-.45
+516
+9.8
+2.
+.5
And will reject these non-numbers:
. (single decimal point)
-. (negative decimal point)
+. (plus decimal point)
(empty string)
The simpler solutions can incorre...
2016电商“死亡”名单（上半年） - 资讯 - 清泛网 - 专注IT技能提升
...社交媒体圈显示“再见蜜淘”之类的话语。
模式：前身CN海淘上线于2014年3月，主打一站式海淘代购的轻模式；2014年7月，蜜淘宣布切入上游供应链，推出限时特卖服务，由轻模式的一站式购物转变成为一家B2C自营的海淘电商；2...
How did I get a value larger than 8 bits in size from an 8-bit integer?
...th c = c - 1 and the values remained within the range [-128 ... 127]:
c: -123
c: -124
c: -125
c: -126
c: -127
c: -128 // about to overflow
c: 127 // woop
c: 126
c: 125
c: 124
c: 123
c: 122
Freaky ey? I don't know much about what the compiler does to expressions like i++ or i--. It's likely promo...
EProgrammerNotFound exception in Delphi?
...mon errors with a similar message. Internally we've always joked and poked fun at different things and people (mostly on the team itself). If you don't have a sense of humor, you're destined to an early grave.
It was a simple conversation;
"Oh, you should have raised the EProgrammerNotFound excep...
Remove substring from the string
...
ruby is fun! really enjoy seeing stuff like: asdf['bar'] = ''
– Peter Butkovic
Dec 2 '14 at 10:11
...
Block Comments in Clojure
...re!"))
Check me out!
)
Just wrap your comments in (comment ..) :)
Have fun!
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Function to clear the console in R and RStudio
I am wondering if there is a function to clear the console in R and, in particular, RStudio I am looking for a function that I can type into the console, and not a keyboard shortcut.
...
Google Maps V3 - How to calculate the zoom level for a given bounds
... longitude, and then take the smaller (further out) of the two.
Here is a function that uses both latitude and longitude:
function getBoundsZoomLevel(bounds, mapDim) {
var WORLD_DIM = { height: 256, width: 256 };
var ZOOM_MAX = 21;
function latRad(lat) {
var sin = Math.sin(lat...
Base64Util 拓展：支持图像框、画布、文件、文本字符串、图像精灵base64编...
...跟Base64有关的功能的集合。
下载链接
cn.kevinkun.Base64Util.aix
致谢
感谢 @TIMAI2 的开源代码
注意事项
下面提到的base64文本都是去掉了类似 “data:image/png;base64,” 前缀的文本。
...