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Setting default value for TypeScript object passed as argument
...y:
function sayName(name : { first: string; last?:string }
/* and then assign a default object matching the signature */
= { first: null, last: 'Smith' }) {
}
As it would only set the default if name was undefined.
...
Is there a JSON equivalent of XQuery/XPath?
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I think JSONQuery is a superset of JSONPath and thus replaces it in dojo. Then there's also RQL.
From Dojo documentation:
JSONQuery is an extended version of JSONPath with additional features
for security, ease of use, and a comprehensive set of data querying
tools including filtering, rec...
Standard deviation of a list
...
I would put A_Rank et al into a 2D NumPy array, and then use numpy.mean() and numpy.std() to compute the means and the standard deviations:
In [17]: import numpy
In [18]: arr = numpy.array([A_rank, B_rank, C_rank])
In [20]: numpy.mean(arr, axis=0)
Out[20]:
array([ 0.7 ...
gradle build fails on lint task
....gradle file:
android {
lintOptions {
abortOnError false
}
}
Then clean your project :D
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What is the purpose of double curly braces in React's JSX syntax?
...le = {
backgroundColor: 'red',
color: 'grey',
margin: '-25px'
}
then you call it with jsx syntax
<span style={spanStyle}>
{this.props.product.name}
</span>
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Best way to change the background color for an NSView
... to configure the view to use a Core Animation layer as its backing store. Then you can use -[CALayer setBackgroundColor:] to set the background color of the layer.
- (void)awakeFromNib {
self.wantsLayer = YES; // NSView will create a CALayer automatically
}
- (BOOL)wantsUpdateLayer {
retur...
In Java, is there a way to write a string literal without having to escape quotes?
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Then what about "\" in myString?
– Anderson
Feb 21 '17 at 11:51
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C++ Returning reference to local variable
...p the stack and overwrites it.
This is why this can work for a while - and then suddenly cease to function after one particularly deeply nested set of functions, or a function with really huge sized or many local objects, reaches that stack-memory again.
It even can happen that you reach the same p...
How can I set focus on an element in an HTML form using JavaScript?
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Note that if you are trying to focus from the console then it is not possible!
– Or Choban
Apr 4 '19 at 9:03
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How to display pandas DataFrame of floats using a format string for columns?
...llar sign.
Otherwise, if you want dollar formatting for some floats only, then I think you'll have to pre-modify the dataframe (converting those floats to strings):
import pandas as pd
df = pd.DataFrame([123.4567, 234.5678, 345.6789, 456.7890],
index=['foo','bar','baz','quux'],
...