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Print second last column/field in awk
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This breaks if you try to get the third last field like awk -F '.' '{print $(NF-2)}'
– gies0r
Jun 6 '18 at 8:01
3
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Difference between byte vs Byte data types in C# [duplicate]
...e same data type, so the resulting code is identical. There are only some differences in usage:
You can use byte even if the System namespace is not included. To use Byte you have to have a using System; at the top of the page, or specify the full namespace System.Byte.
There are a few situations ...
How to create a colored 1x1 UIImage on the iPhone dynamically?
... can use CGContextSetFillColorWithColor and CGContextFillRect for this:
Swift
extension UIImage {
class func image(with color: UIColor) -> UIImage {
let rect = CGRectMake(0.0, 0.0, 1.0, 1.0)
UIGraphicsBeginImageContext(rect.size)
let context = UIGraphicsGetCurrentCon...
Does MySQL included with MAMP not include a config file?
...art servers
Not required to change ownership of file, it should work. Verify by running SHOW VARIABLES in phpmyadmin and look for your changed setting.
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Import SQL dump into PostgreSQL database
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if i run it from cmd i get 'The '<' operator is reserved for future use.'
– dazz
Jul 27 '11 at 10:54
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App Inventor 2 CirculBar 扩展：在图像组件上绘制自定义圆形进度条 · App Inventor 2 中文网
...鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + 'px'; element.style.top = (e.clientY - offsetY) + 'px'; }; // 鼠标释放时停止拖动 document.onmouseup = function(...
What are the differences between struct and class in C++?
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You forget the tricky 2nd difference between classes and structs.
Quoth the standard (§11.2.2 in C++98 through C++11):
In absence of an access-specifier
for a base class, public is assumed
when the derived class is declared
struct and priva...
String.Join method that ignores empty strings?
... true, because you can't simply enter this character by keyboard).
Also, if you get the values from a database, then it's even simpler, since you can do it in SQL directly:
PostgreSQL & MySQL:
SELECT
concat_ws(' / '
, NULLIF(searchTerm1, '')
, NULLIF(searchTerm2, '')
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Make a number a percentage
...to strip the "0."XXX% off a number and make it a percentage? What happens if the number happens to be an int?
8 Answers
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Trigger change event using jquery
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If you want to do some checks then use this way
<select size="1" name="links" onchange="functionToTriggerClick(this.value)">
<option value="">Select a Search Engine</option>
<option valu...