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JavaScript loop through json array?
...email.se"
}];
Next, you can iterate like this :
for (var key in json) {
if (json.hasOwnProperty(key)) {
alert(json[key].id);
alert(json[key].msg);
}
}
And it gives perfect result.
See the fiddle here : http://jsfiddle.net/zrSmp/
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Volatile vs Static in Java
... be one variable for each Object. So, on the surface it seems there is no difference from a normal variable but totally different from static. However, even with Object fields, a thread may cache a variable value locally.
This means that if two threads update a variable of the same Object concurren...
how to change any data type into a string in python
...
str is meant to produce a string representation of the object's data. If you're writing your own class and you want str to work for you, add:
def __str__(self):
return "Some descriptive string"
print str(myObj) will call myObj.__str__().
repr is a similar method, which generally produce...
How to convert a file into a dictionary?
... for line in open("file.txt"): do cleanup the same way. And if f is a local value the f is released when the scope is lost. The only case where this statement is useful is for long function (not good for quality), or if you use a global variable.
– VGE
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C: Run a System Command and Get Output? [duplicate]
... /* Open the command for reading. */
fp = popen("/bin/ls /etc/", "r");
if (fp == NULL) {
printf("Failed to run command\n" );
exit(1);
}
/* Read the output a line at a time - output it. */
while (fgets(path, sizeof(path), fp) != NULL) {
printf("%s", path);
}
/* close */
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Best way to compare 2 XML documents in Java
...g xml2 = ...
XMLUnit.setIgnoreWhitespace(true); // ignore whitespace differences
// can also compare xml Documents, InputSources, Readers, Diffs
assertXMLEqual(xml1, xml2); // assertXMLEquals comes from XMLTestCase
}
}
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How do I trim whitespace from a string?
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Just one space, or all consecutive spaces? If the second, then strings already have a .strip() method:
>>> ' Hello '.strip()
'Hello'
>>> ' Hello'.strip()
'Hello'
>>> 'Bob has a cat'.strip()
'Bob has a cat'
>>> ' Hello '.strip()...
How to find the extension of a file in C#?
...ombination of both checks is probably a reasonable solution but ultimately if security is a concern then there should be more rigourous checks e.g. blocking unsigned files or content sampling.
– James
Feb 28 '18 at 18:41
...
Position absolute but relative to parent
...
What if you need to resize parent with child?
– FrenkyB
Sep 7 '17 at 12:21
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...cal order, i.e. sorting is performed by the first key, then the second key if the first one is equal, etc". Does this mean that the structure is stored such that a lookup for a specific 2-part composite key will take O(n=1) time, i.e. is the container sorted such that there is a pointer directl...