大约有 44,868 项符合查询结果(耗时:0.0462秒) [XML]

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StringBuilder vs String concatenation in toString() in Java

... Version 1 is preferable because it is shorter and the compiler will in fact turn it into version 2 - no performance difference whatsoever. More importantly given we have only 3 properties it might not make a difference, but at what point do you sw...
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Storing Objects in HTML5 localStorage

...oking at the Apple, Mozilla and Mozilla again documentation, the functionality seems to be limited to handle only string key/value pairs. A workaround can be to stringify your object before storing it, and later parse it when you retrieve it: var testObject = { 'one': 1, 'two': 2, 'three': 3 }; /...
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Trigger a Travis-CI rebuild without pushing a commit?

Using Travis-CI, is it possible to trigger a rebuild without pushing a new commit to GitHub? 16 Answers ...
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Pythonic way to check if a file exists? [duplicate]

Which is the preferred way to check if a file exists and if not create it? 5 Answers 5...
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What is the difference between char s[] and char *s?

In C, one can use a string literal in a declaration like this: 13 Answers 13 ...
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What are the uses of the exec command in shell scripts? [closed]

...n anyone explain what are the uses of the exec command in shell scripting with simple examples? 2 Answers ...
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Differences between Proxy and Decorator Pattern

...corators have a different purpose. A decorator adds one or more responsibilities to an object, whereas a proxy controls access to an object. Proxies vary in the degree to which they are implemented like a decorator. A protection proxy might be implemented exactly like a decorator. On the othe...
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Build tree array from flat array in javascript

I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree. Every entry of the json has : id : a unique id, parentId : the id of the parent node (which is 0 if the node is a root of the tree) level : the level of depth in the tree ...
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ReSharper Abbreviations List: Where can I modify it?

... am using ReSharper 4.5, and what often happens when I am converting explicit properties into auto-properties, is that I will accidentally chose "Add XX to abbreviations list". ...
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When should I use mmap for file access?

...accessing files. There's the standard system calls open() , read() , write() , and friends, but there's also the option of using mmap() to map the file into virtual memory. ...