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RegEx for Javascript to allow only alphanumeric
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/^[a-z0-9]+$/i
^ Start of string
[a-z0-9] a or b or c or ... z or 0 or 1 or ... 9
+ one or more times (change to * to allow empty string)
$ end of string
/i case-insensitive
Update (supporting ...
Prevent automatic browser scroll on refresh
...if element has this id then scroll to it
if ($(hash).length != 0) {
element = $(hash);
}
//catch cases of links that use anchor name
else if ($('a[name="' + hashName + '"]').length != 0)
{
//just use the firs...
Swift - Cast Int into enum:Int
...tch a bug in this case.
– X.Y.
Dec 30 '18 at 22:48
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Arduino控制RGB三色LED灯实验、程序代码、连线图、仿真 - 创客硬件开发 - ...
...控制，针对Arudino UNO板子中带有"~"的3、5、6、9、10、11数字端口写入一个模拟值，通知高电平与低电平持续时间的比值控制LED的亮度变化或者电机的转速。例如：欲使得内置的Arudino UNO 中的led亮度变为原来的一般，编写anal...
MongoDB: How to query for records where field is null or not set?
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edited Aug 31 '16 at 0:31
answered May 14 '12 at 21:55
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Removing All Child Views from View
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201
viewGroup.removeAllViews()
works for any viewGroup. in your case it is GridView.
http://deve...
Installing Latest version of git in ubuntu
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edited Jan 4 '18 at 6:40
Quanlong
18.4k88 gold badges5858 silver badges7474 bronze badges
answered Oc...
IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
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answered Jun 15 '10 at 22:32
BrigBrig
9,0661010 gold badges4141 silver badges6767 bronze badges
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What do numbers using 0x notation mean?
What does a 0x prefix on a number mean?
5 Answers
5
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How can I get every nth item from a List?
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10 Answers
10
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