大约有 47,000 项符合查询结果(耗时:0.0570秒) [XML]

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How can I measure the speed of code written in PHP? [closed]

How can I say which class of many (which all do the same job) execute faster? is there a software to measure that? 10 Answe...
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How to avoid scientific notation for large numbers in JavaScript?

JavaScript converts a large INT to scientific notation when the number becomes large. How can I prevent this from happening? ...
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SVG drop shadow using css3

Is it possible to set drop shadow for an svg element using css3 , something like 7 Answers ...
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“Comparison method violates its general contract!”

Can someone explain me in simple terms, why does this code throw an exception, "Comparison method violates its general contract!", and how do I fix it? ...
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How do I Sort a Multidimensional Array in PHP [duplicate]

I have CSV data loaded into a multidimensional array. In this way each "row" is a record and each "column" contains the same type of data. I am using the function below to load my CSV file. ...
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Subscripts in plots in R

I can't find a way how to write subscripts in the title or the subtitle in R. How can I write v 1,2 with 1,2 as subscripts? ...
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BigDecimal - to use new or valueOf

I came across two ways of getting BigDecimal object out of a double d. 3 Answers 3 ...
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Can't connect to local MySQL server through socket '/tmp/mysql.sock

When I attempted to connect to a local MySQL server during my test suite, it fails with the error: 32 Answers ...
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How do you know when to use fold-left and when to use fold-right?

I'm aware that fold-left produces left-leaning trees and fold-right produces right-leaning trees, but when I reach for a fold, I sometimes find myself getting bogged down in headache-inducing thought trying to determine which kind of fold is appropriate. I usually end up unwinding the entire proble...
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CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa

When building a class in CoffeeScript, should all the instance method be defined using the => ("fat arrow") operator and all the static methods being defined using the -> operator? ...