大约有 46,000 项符合查询结果（耗时：0.0311秒） [XML]
Remove not alphanumeric characters from string
...put.replace(/\W/g, '')
Note that \W is the equivalent of [^0-9a-zA-Z_] - it includes the underscore character. To also remove underscores use e.g.:
input.replace(/[^0-9a-z]/gi, '')
The input is malformed
Since the test string contains various escaped chars, which are not alphanumeric, it will ...
Checking a Python module version at runtime
...eing used might contain some type of patch that doesn't effect your use of it.
As an alternative, I'd like to suggest that you don't check at run time (don't know if that's a hard requirement or not). For the python stuff I write that has external dependencies (3rd party libraries), I write a sc...
Determine command line working directory when running node bin script
I am creating a node command line interface. It is installed globally and uses a bin file to execute.
5 Answers
...
Underscore: sortBy() based on multiple attributes
I am trying to sort an array with objects based on multiple attributes. I.e if the first attribute is the same between two objects a second attribute should be used to comapare the two objects. For example, consider the following array:
...
JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
...
This problem stems from an improper Java installation.
Possibility 1
NOTE: This scenario only applies to Java 8 and prior. Beginning with Java 9, the JRE is structured differently. rt.jar and friends no longer exist, and Pack200 is no longer used.
The Java standard library is conta...
What is an 'endpoint' in Flask?
... the function you referred to (add_url_rule) achieves the same goal, just without using the decorator notation. Therefore, the following is the same:
# No "route" decorator here. We will add routing using a different method below.
def give_greeting(name):
return 'Hello, {0}!'.format(name)
app....
Why are all fields in an interface implicitly static and final?
...just trying to understand why all fields defined in an Interface are implicitly static and final . The idea of keeping fields static makes sense to me as you can't have objects of an interface but why they are final (implicitly)?
...
Underscore prefix for property and method names in JavaScript
...
Welcome to 2019!
It appears a proposal to extend class syntax to allow for # prefixed variable to be private was accepted. Chrome 74 ships with this support.
_ prefixed variable names are considered private by convention but are still public...
Are lists thread-safe?
I notice that it is often suggested to use queues with multiple threads, instead of lists and .pop() . Is this because lists are not thread-safe, or for some other reason?
...
Get bitcoin historical data [closed]
I want to do my own bitcoin chart.
7 Answers
7
...