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Determine the data types of a data frame's columns
...7.6, 167.6...
$ hp <dbl> 110, 110, 93, 110, 175, 105, 245, 62, 95, 123, 123, 180, 180, 180, 205, 215...
$ drat <dbl> 3.90, 3.90, 3.85, 3.08, 3.15, 2.76, 3.21, 3.69, 3.92, 3.92, 3.92, 3.07, 3.0...
$ wt <dbl> 2.620, 2.875, 2.320, 3.215, 3.440, 3.460, 3.570, 3.190, 3.150, 3.440, 3...
Get css top value as number not as string?
...css(prop)) || 0;
};
Usage:
$('#elem').cssInt('top'); // e.g. returns 123 as an int
$('#elem').cssFloat('top'); // e.g. Returns 123.45 as a float
Test fiddle on http://jsfiddle.net/TrueBlueAussie/E5LTu/
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How to capitalize the first letter in a String in Ruby
..."hello".capitalize #=> "Hello"
"HELLO".capitalize #=> "Hello"
"123ABC".capitalize #=> "123abc"
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Why is string concatenation faster than array join?
...and maybe other.
a = {
nodeA: 'abc',
nodeB: 'def'
}
And b = a.concat('123')
b = {
nodeA: a, /* {
nodeA: 'abc',
nodeB: 'def'
} */
nodeB: '123'
}
So in the simplest case the VM has to do nearly no work. The only problem is that this slows down...
Set Value of Input Using Javascript Function
...
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
answered Jun 22 '16 at 19:11
BSounderBS...
Find element's index in pandas Series
... [122]: myseries = pd.Series([1,7,0,7,5], index=['a','b','c','d','e'])
In [123]: list(myseries[myseries==7].index)
Out[123]: ['b', 'd']
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How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
...Doe',
address: {
city: 'NY',
street: 'Eighth Avenu',
number: 123
}
};
var instructions = dot.flatten(person)
console.log(instructions);
/*
{
$set: {
'firstName': 'John',
'lastName': 'Doe',
'address.city': 'NY',
'address.street': 'Eighth Avenu',
'address.numb...
How to pass an array within a query string?
...a comma separated list of items:
let data = {
str: 'abc',
arr: ['abc', 123]
}
new URLSearchParams(data).toString(); // ?str=abc&arr=abc,123
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Spring Boot - inject map from application.yml
...eholders being replaced. E.g. if you had a system property project.version=123 set, the example you gave in the answer would return version=123, while after setting locations it would return project.version=${project.version}. Do you know if there's a limitation of some sorts here?
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Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
..., 0.65, 0.68,
0.71, 0.74, 0.77, 0.80, 0.83, 0.86, 0.89, 0.92, 0.95, 0.98,
1.0, 1.06, 1.12, 1.18, 1.24, 1.30, 1.36, 1.42, 1.48, 1.54,
1.60, 1.66, 1.72, 1.78, 1.84, 1.90, 1.96, 2.0, 2.12, 2.25,
2.37, 2.50, 2.62, 2.75, 2.87, 3.0, 3.2, 3.4, 3.6, 3.8,
4.0, 4.3, 4.7, 4.9, 5...