大约有 40,000 项符合查询结果（耗时：0.0367秒） [XML]
Get the length of a String
...
As of Swift 4+
It's just:
test1.count
for reasons.
(Thanks to Martin R)
As of Swift 2:
With Swift 2, Apple has changed global functions to protocol extensions, extensions that match any type conforming to a protocol. Thus the new syntax is:
test...
How to get function parameter names/values dynamically?
... @andes Note you are including the regex compilation in your tests. These should only be done once. Your results may be different if you move the regex compilation to the setup step instead of the test
– Jack Allan
Apr 7 '15 at 10:07
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Django filter queryset __in for *every* item in list
...ries.
You also have the option of using custom queries.
Some examples
Test setup:
class Photo(models.Model):
tags = models.ManyToManyField('Tag')
class Tag(models.Model):
name = models.CharField(max_length=50)
def __unicode__(self):
return self.name
In [2]: t1 = Tag.obje...
Difference between fmt.Println() and println() in Go
...s an example.
println() prints a pointer point to the address of function test.
fmt.Println() prints the address of function.
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Remove blank attributes from an Object in Javascript
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You can loop through the object:
var test = {
test1 : null,
test2 : 'somestring',
test3 : 3,
}
function clean(obj) {
for (var propName in obj) {
if (obj[propName] === null || obj[propName] === undefined) {
delete obj[propName];
}
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Dictionary vs Object - which is more efficient and why?
...ave time as well as memory?
Comparing the three approaches on my computer:
test_slots.py:
class Obj(object):
__slots__ = ('i', 'l')
def __init__(self, i):
self.i = i
self.l = []
all = {}
for i in range(1000000):
all[i] = Obj(i)
test_obj.py:
class Obj(object):
def __init__(self, i):
...
Using Moq to determine if a method is called
It is my understanding that I can test that a method call will occur if I call a higher level method, i.e.:
3 Answers
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Load Testing with AB … fake failed requests (length)
To do some load testing, for my own curiosity, on my server I ran:
3 Answers
3
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if…else within JSP or JSTL
...onal rendering in jsp using JSTL.
To simulate if , you can use:
<c:if test="condition"></c:if>
To simulate if...else, you can use:
<c:choose>
<c:when test="${param.enter=='1'}">
pizza.
<br />
</c:when>
<c:otherwise>
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Appending HTML string to the DOM
...
child.innerHTML = str;
child = child.firstChild;
document.getElementById('test').appendChild(child);
jsFiddle.
But, Neil's answer is a better solution.
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