大约有 47,000 项符合查询结果(耗时:0.0650秒) [XML]
What is the good python3 equivalent for auto tuple unpacking in lambda?
...
8 Answers
8
Active
...
How to skip to next iteration in jQuery.each() util?
I'm trying to iterate through an array of elements. jQuery's documentation says:
6 Answers
...
Closing multiple issues in Github with a commit message
I know you can close issues by putting closes #1 or fixes #1 in the commit message. What is the best way to close multiple issues in the same commit message?
...
How to serialize a JObject without the formatting?
I have a JObject (I'm using Json.Net) that I constructed with LINQ to JSON (also provided by the same library). When I call the ToString() method on the JObject , it outputs the results as formatted JSON.
...
How to read the mode field of git-ls-tree's output
I know the last 3 oct digits are file mode, but what are the first 3 digits for?
I can't find it out in git user's manual.
...
Set a default parameter value for a JavaScript function
I would like a JavaScript function to have optional arguments which I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this:
...
JavaScript file upload size validation
Is there any way to check file size before uploading it using JavaScript?
13 Answers
...
Postgresql: Conditionally unique constraint
I'd like to add a constraint which enforces uniqueness on a column only in a portion of a table.
2 Answers
...
bash assign default value
I thought I could use this feature to write ${LONG_VARIABLE_NAME:=hello} instead of the longer LONG_VARIABLE_NAME=${LONG_VARIABLE_NAME:-hello} , but now bash also tries to execute 'hello' and that gives a command not found. Any way to avoid that? Or will I have to stick to the latter? Can someone...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
Should I define a separate index on the email column (for searching purposes), or is the index is "automatically" added along with UNIQ_EMAIL_USER constraint?
...