大约有 13,700 项符合查询结果（耗时：0.0327秒） [XML]
Read each line of txt file to new array element
...sing, this should do what you're looking for
$lines = file($filename, FILE_IGNORE_NEW_LINES);
share
|
improve this answer
|
follow
|
...
Can an AJAX response set a cookie?
...swered Jul 27 '10 at 4:46
this. __curious_geekthis. __curious_geek
40.1k2020 gold badges105105 silver badges132132 bronze badges
...
Memoization in Haskell?
...alling, for example: fix f 123 = 144
We could memoize this by defining:
f_list :: [Int]
f_list = map (f faster_f) [0..]
faster_f :: Int -> Int
faster_f n = f_list !! n
That performs passably well, and replaces what was going to take O(n^3) time with something that memoizes the intermediate r...
How to print a groupby object
...
Simply do:
grouped_df = df.groupby('A')
for key, item in grouped_df:
print(grouped_df.get_group(key), "\n\n")
This also works,
grouped_df = df.groupby('A')
gb = grouped_df.groups
for key, values in gb.iteritems():
print(df.ix[...
How to set Oracle's Java as the default Java in Ubuntu?
How do I change the value of JAVA_HOME in Ubuntu to point to Oracle's Java?
8 Answers
...
Window.open and pass parameters by post method
...
@Guffa any way to also simulate the behavior of target="_blank"?
– everton
Jan 15 '14 at 20:31
2
...
What Makes a Good Unit Test? [closed]
... of Writing Tests:
1. Use long, descriptive test method names.
- Map_DefaultConstructorShouldCreateEmptyGisMap()
- ShouldAlwaysDelegateXMLCorrectlyToTheCustomHandlers()
- Dog_Object_Should_Eat_Homework_Object_When_Hungry()
2. Write your tests in an Arrange/Act/Assert style.
While th...
find vs find_by vs where
...d are usually replaced with things like this:
Model.all
Model.first
find_by is used as a helper when you're searching for information within a column, and it maps to such with naming conventions. For instance, if you have a column named name in your database, you'd use the following syntax:
Mod...
Why {} + {} is NaN only on the client side? Why not in Node.js?
...eAPI && inspectedWindow.console) {
inspectedWindow.console._commandLineAPI = new CommandLineAPI(this._commandLineAPIImpl, isEvalOnCallFrame ? object : null);
expression = "with ((window && window.console && window.console._commandLineAPI) || {}) {\n" + express...
Bash empty array expansion with `set -u`
...4.4.
$ bash --version | head -n 1
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
$ set -u
$ arr=()
$ echo "foo: '${arr[@]}'"
foo: ''
There is a conditional you can use inline to achieve what you want in older versions: Use ${arr[@]+"${arr[@]}"} instead of "${arr[@]}".
$ function ...