大约有 35,483 项符合查询结果（耗时：0.0568秒） [XML]
Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
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708
You could also pass the content to the pseudo element with a data attribute and then use jQuery...
How to benchmark efficiency of PHP script
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+50
If you actually want to benchmark real world code, use tools like Xdebug and XHProf.
Xdebug is great for when you're working in dev/s...
Correct way to find max in an Array in Swift
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302
Given:
let numbers = [1, 2, 3, 4, 5]
Swift 3:
numbers.min() // equals 1
numbers.max() // eq...
How to use phpexcel to read data and insert into database?
...age());
}
// Get worksheet dimensions
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumn = $sheet->getHighestColumn();
// Loop through each row of the worksheet in turn
for ($row = 1; $row <= $highestRow; $row++){
// Read a row of data i...
Looking for a clear definition of what a “tokenizer”, “parser” and...
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edited Dec 19 '08 at 9:30
answered Dec 19 '08 at 9:25
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Update Item to Revision vs Revert to Revision
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205
Update to revision will only update files of your workingcopy to your choosen revision.
But yo...
Add legend to ggplot2 line plot
...I would plot your data:
##Subset the necessary columns
dd_sub = datos[,c(20, 2,3,5)]
##Then rearrange your data frame
library(reshape2)
dd = melt(dd_sub, id=c("fecha"))
All that's left is a simple ggplot command:
ggplot(dd) + geom_line(aes(x=fecha, y=value, colour=variable)) +
scale_colour_man...
How do you implement a class in C? [closed]
...rectangle_new(RectangleClass *rect)
{
rect->width = rect->height = 0.f;
rect->shape.computeArea = rectangle_computeArea;
}
If you want several different constructors, you will have to "decorate" the function names, you can't have more than one rectangle_new() function:
void rectangle...
Remove Object from Array using JavaScript
...eArray = someArray.slice(1); // first element removed
//3
someArray.splice(0, 1); // first element removed
//4
someArray.pop(); // last element removed
//5
someArray = someArray.slice(0, a.length - 1); // last element removed
//6
someArray.length = someArray.length - 1; // last element removed
If ...
Powershell equivalent of bash ampersand (&) for forking/running background processes
...f the job as parameter.
NOTE: Regarding your initial example, "bg sleep 30" would not work because sleep is a Powershell commandlet. Start-Process only works when you actually fork a process.
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