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http HEAD vs GET performance
...EAD might work nicely.
For example, suppose you want to check if resource 123 exists. A 200 means "yes" and a 404 means "no":
HEAD /resources/123 HTTP/1.1
[...]
HTTP/1.1 404 Not Found
[...]
However, if the "yes" or "no" you want from your REST service is a part of the resource itself, rather th...
Is there a cross-browser onload event when clicking the back button?
...nswered Oct 14 '08 at 14:32
user123444555621user123444555621
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What is the exact meaning of IFS=$'\n'?
...cessary. Run new IFS in subshell to avoid overriding the default IFS:
ar=(123 321); ( IFS=$'\n'; echo ${ar[*]} )
Besides I don't really believe you recover the old IFS fully. You should double quote it to avoid line breaking such as OLDIFS="$IFS".
...
MySQL join with where clause
... in A table which having id null in B table
– Veeresh123
Aug 29 '16 at 6:57
@Veeresh123, what are A and B table ? Can ...
How do I convert Long to byte[] and back in java
...ion methods from Google Guava.
Example:
byte[] bytes = Longs.toByteArray(12345L);
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Replace comma with newline in sed on MacOS?
...
123
sed 's/,/\
/g'
works on Mac OS X.
...
Show hidden div on ng-click within ng-repeat
...hide the first div when I click on second div.
– User123
Oct 12 '16 at 7:41
To answer the Q above... Just change the n...
how to read System environment variable in Spring applicationContext
...rop");
For a single property in a @Bean
@Value("${my.another.property:123}") // value after ':' is the default
Integer property;
Another way are the handy @ConfigurationProperties beans:
@ConfigurationProperties(prefix="my.properties.prefix")
public class MyProperties {
// value from my....
SqlDataAdapter vs SqlDataReader
...
AdaTheDevAdaTheDev
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Copy a variable's value into another
...your top-level object. For example, given this object:
var obj = {
w: 123,
x: {
y: 456,
z: 789
}
};
If you do a shallow copy of that object, then the x property of your new object is the same x object from the original:
var copy = $.extend( {}, obj );
copy.w = 321;
co...