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How do I check that a number is float or integer?
...r a remainder when dividing by 1:
function isInt(n) {
return n % 1 === 0;
}
If you don't know that the argument is a number you need two tests:
function isInt(n){
return Number(n) === n && n % 1 === 0;
}
function isFloat(n){
return Number(n) === n && n % 1 !== 0;
}
...
How to style the parent element when hovering a child element?
...hite}
div p {padding-bottom: 26px}
div button {position: absolute; bottom: 0}
Obviously, in most cases this trick depends on the use of absolute positioning to give the sibling the same size as the parent, ánd still let the child appear within the parent.
Sometimes it is necessary to use a mor...
How do I “undo” a --single-branch clone?
...
+50
You can tell Git to pull all branches like this:
git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"
git fetch origi...
Remove all values within one list from another list? [duplicate]
...
>>> a = range(1, 10)
>>> [x for x in a if x not in [2, 3, 7]]
[1, 4, 5, 6, 8, 9]
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Using Mockito with multiple calls to the same method with the same arguments
...n(someMock.someMethod()).thenAnswer(new Answer() {
private int count = 0;
public Object answer(InvocationOnMock invocation) {
if (count++ == 1)
return 1;
return 2;
}
});
Or using the equivalent, static doAnswer method:
doAnswer(new Answer() {
private ...
Detect Retina Display
...unning iOS4+ and if the [UIScreen mainScreen].scale property is equal to 2.0. You CANNOT assume a device is running iOS4+ if the scale property exists, as the iPad 3.2 also contains this property.
On an iPad running iOS3.2, scale will return 1.0 in 1x mode, and 2.0 in 2x mode -- even though we kno...
“SetPropertiesRule” warning message when starting Tomcat from Eclipse [duplicate]
When I start Tomcat (6.0.18) from Eclipse (3.4), I receive this message (first in the log):
12 Answers
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Style disabled button with CSS
...?
Example for the disabled selector:
button {
border: 1px solid #0066cc;
background-color: #0099cc;
color: #ffffff;
padding: 5px 10px;
}
button:hover {
border: 1px solid #0099cc;
background-color: #00aacc;
color: #ffffff;
padding: 5px 10px;
}
button:disabled,
...
Select n random rows from SQL Server table
I've got a SQL Server table with about 50,000 rows in it. I want to select about 5,000 of those rows at random. I've thought of a complicated way, creating a temp table with a "random number" column, copying my table into that, looping through the temp table and updating each row with RAND() , and ...
Is there a way to select sibling nodes?
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edited Feb 20 '15 at 16:19
answered May 9 '09 at 0:12
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