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Python Pandas: Get index of rows which column matches certain value
...ool (PS: about how to use it please check link )
df.query('BoolCol')
Out[123]:
BoolCol
10 True
40 True
50 True
After we filter the original df by the Boolean column we can pick the index .
df=df.query('BoolCol')
df.index
Out[125]: Int64Index([10, 40, 50], dtype='int64')
Als...
Preloading images with jQuery
..., in my context, I'm using this as follows:
$.post('/submit_stuff', { id: 123 }, function(response) {
$([response.imgsrc1, response.imgsrc2]).preloadImages(function(){
// Update page with response data
});
});
Hopefully this helps someone who comes to this page from Google (as I did) look...
How Pony (ORM) does its tricks?
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@randomsurfer_123 probably not, we just need some time to implement it (maybe a week), and there are other tasks that are more important to us.
– Alexander Kozlovsky
Mar 18 '16 at 10:43
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Find the most frequent number in a numpy vector
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ApogentusApogentus
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4
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php $_POST array empty upon form submission
...g didn't have a name attribute, and only in IE.
– jkt123
Jul 25 '17 at 18:13
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Parameterize an SQL IN clause
...
123
That will be hella slow
– Matt Rogish
Dec 3 '08 at 16:43
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How to create PDFs in an Android app? [closed]
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@kape123 nice sense of humour :-)
– AZ_
Feb 7 '13 at 12:35
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What is the most efficient way to deep clone an object in JavaScript?
...e(JSON.stringify(object))
const a = {
string: 'string',
number: 123,
bool: false,
nul: null,
date: new Date(), // stringified
undef: undefined, // lost
inf: Infinity, // forced to 'null'
re: /.*/, // lost
}
console.log(a);
console.log(typeof a.date); // Date obje...
A worthy developer-friendly alternative to PayPal [closed]
...2"
-d "card[exp_month]=12"
-d "card[exp_year]=2012"
-d "card[cvc]=123"
Excellent developer tools and a sandbox
You can test your payment form integration with test API keys before going live. More info: https://stripe.com/docs/testing
Good example API implementations, preferably ...
How can I round a number in JavaScript? .toFixed() returns a string?
...ating-point systems.
For example, 0.1 is really 0.1000000000000000055511151231257827021181583404541015625, and 0.01 is really 0.01000000000000000020816681711721685132943093776702880859375. (Thanks to BigDecimal for proving my point. :-P)
Therefore (absent a decimal floating point or rational numbe...