大约有 19,000 项符合查询结果（耗时：0.0814秒） [XML]
Is it possible to make relative link to image in a markdown file in a gist?
...'t just use the first URL and trust it to always work.
Currently neither form returns a redirect, nor serves a rel=canonical link. I wouldn't bet on Github to never change this!
All internal gist links (e.g. from user's page https://gist.github.com/cben/) omit the trailing slash :-(
Gists in Goog...
python max function using 'key' and lambda expression
...Example 1:
A simple example, suppose you have a list of numbers in string form, but you want to compare those items by their integer value.
>>> lis = ['1', '100', '111', '2']
Here max compares the items using their original values (strings are compared lexicographically so you'd get '2'...
MySQL vs MongoDB 1000 reads
...corporate it into their codebase.
People are seeing real world MongoDB performance largely because MongoDB allows you to query in a different manner that is more sensible to your workload.
For example, consider a design that persisted a lot of information about a complicated entity in a normalised...
What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
...bar. However, if you have a lot of quotes in your string these alternative forms can get hard to read (and therefore hard to maintain). This page provides a good introduction to quoting in Bash.
Arrays ($var vs. $var[@] vs. ${var[@]})
Now for your array. According to the bash manual:
Referenci...
Why are C# 3.0 object initializer constructor parentheses optional?
...It poses no problems for the sort of "partial program" analysis that is performed by the IDE's "IntelliSense" engine while you are typing. And so on.
the feature hits a common "sweet spot" for the larger object initialization feature; typically if you are using an object initializer it is precisely...
MySQL ON vs USING?
... +1 Nice answer on the syntactical difference. I'm curious about performance differences, if any. I imagine USING interprets to ON.
– Jason McCreary
Jul 6 '12 at 17:36
...
Difference between DTO, VO, POJO, JavaBeans?
... Practically, they are classes written in the Java programming language conforming to a particular convention. They are used to encapsulate many objects into a single object (the bean), so that they can be passed around as a single bean object instead of as multiple individual objects. A JavaBean is...
Why shouldn't all functions be async by default?
...erations are not high latency, so it doesn't make any sense to take the performance hit that mitigates that latency. Rather, a key few of your operations are high latency, and those operations are causing the zombie infestation of async throughout the code.
if performance is the sole problem, s...
How does `is_base_of` work?
...ce because whether we can convert from a D* to a B* isn't dependent on the form of inheritance according to 4.10/3
If they are not related
Now let's assume they are not related by inheritance. Thus for the first function we have the following candidates
D* (Host<B, D>&)
And for the s...
What is the difference between concurrency and parallelism?
...t exists when at least two threads are making progress. A more generalized form of parallelism that can include time-slicing as a form of virtual parallelism.
Parallelism: A condition that arises when at least two threads are executing simultaneously.
...