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“Variable” variables in Javascript?
...roblem.
If you have a fixed set of names, such as
// BAD
var foo = 42;
var bar = 21;
var key = 'foo';
console.log(eval(key));
store the those name/values as properties of an object and use bracket notation to look them up dynamically:
// GOOD
var obj = {
foo: 42,
bar: ...
How do I set vertical space between list items?
...red Oct 8 '13 at 17:31
user1633525user1633525
...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
... char c;
int x;
} __attribute__((packed));
struct foo arr[2] = { { 'a', 10 }, {'b', 20 } };
int *p0 = &arr[0].x;
int *p1 = &arr[1].x;
printf("sizeof(struct foo) = %d\n", (int)sizeof(struct foo));
printf("offsetof(struct foo, c) = %d\n", (int)offsetof(str...
How do you keep user.config settings across different assembly versions in .net?
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238
ApplicationSettingsBase has a method called Upgrade which migrates all settings from the previ...
What is the http-header “X-XSS-Protection”?
...X-XSS-Protection: 0
See also http://blogs.msdn.com/b/ieinternals/archive/2011/01/31/controlling-the-internet-explorer-xss-filter-with-the-x-xss-protection-http-header.aspx
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Is a Java hashmap search really O(1)?
...
128
A particular feature of a HashMap is that unlike, say, balanced trees, its behavior is probabil...
In Postgresql, force unique on combination of two columns
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239
CREATE TABLE someTable (
id serial primary key,
col1 int NOT NULL,
col2 int NOT NU...
LAST_INSERT_ID() MySQL
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251
You could store the last insert id in a variable :
INSERT INTO table1 (title,userid) VALUES (...
How to support placeholder attribute in IE8 and 9
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answered Feb 22 '13 at 9:32
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1,7201414 silver badges2323 bronze badges
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How can I generate UUID in C#
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233
You are probably looking for System.Guid.NewGuid().
...