大约有 30,000 项符合查询结果(耗时:0.0466秒) [XML]
Getters \ setters for dummies
... this.bar = value; } }; foo.bar = 456; Raises an exception: Uncaught RangeError: Maximum call stack size exceeded at Object.set bar [as bar] (<anonymous>:4:32) at Object.set bar [as bar] (<anonymous>:4:32) at Object.set bar [as bar] (<anonymous>:4:32) at Object.set...
Why doesn't Python have a sign function?
...m "value"; -0.0 is a negative number, even if that seems an implementation error. Simply using cmp() will give the desired results, probably for nearly every case anyone would care about: [cmp(zero, 0) for zero in (0, 0.0, -0.0, -4, 5)] ==> [0, 0, 0, -1, 1].
– pythonlarry
...
What are deferred objects?
... url: "example.php" })
.success(function() { alert("success"); })
.error(function() { alert("error"); })
.complete(function() { alert("complete"); });
Working Example From Eric Hynds blog post: http://jsfiddle.net/ehynds/Mrqf8/
jqXHR
As of jQuery 1.5, the $.ajax() method returns the j...
Using an ORM or plain SQL? [closed]
... I was saying: even the most basic scenarios can potentially be subject to errors in different DBMSes - for instance, different handling of NULLs.
– Anton Gogolev
Jan 30 '09 at 8:17
...
Postgres and Indexes on Foreign Keys and Primary Keys
...- or a bad index
WITH fk_actions ( code, action ) AS (
VALUES ( 'a', 'error' ),
( 'r', 'restrict' ),
( 'c', 'cascade' ),
( 'n', 'set null' ),
( 'd', 'set default' )
),
fk_list AS (
SELECT pg_constraint.oid as fkoid, conrelid, confrelid as parentid,
co...
python: Change the scripts working directory to the script's own directory
... @BrunoBronosky With the explicit exit 1 your crond will be notified of an error, and in most cases will send an email notification of the failure.
– Ruud Althuizen
Jan 4 '17 at 14:18
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for each loop in Objective-C for accessing NSMutable dictionary
....
– Brody Robertson
Jun 3 '13 at 20:05
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Delete files older than 3 months old in a directory using .NET
...ted.
– Steve Danner
Feb 8 '10 at 15:05
3
+1 for helping me out. Instead of creating a new FileInf...
URL Encode a string in jQuery for an AJAX request
...').val()),
dataType: "HTML",
success: function (data) {
},
error: function (xhr, ajaxOptions, thrownError) {
}
});
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Round to 5 (or other number) in Python
...
For rounding to non-integer values, such as 0.05:
def myround(x, prec=2, base=.05):
return round(base * round(float(x)/base),prec)
I found this useful since I could just do a search and replace in my code to change "round(" to "myround(", without having to change th...
