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Formatting Phone Numbers in PHP
... and need to be able to convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database .
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How to do this using jQuery - document.getElementById(“selectlist”).value
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150
$('#selectlist').val();
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When do I need to use a semicolon vs a slash in Oracle SQL?
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answered Jul 3 '09 at 17:12
dpbradleydpbradley
11k2727 silver badges3232 bronze badges
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Ruby: What is the easiest way to remove the first element from an array?
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answered Sep 1 '10 at 7:05
SjoerdSjoerd
66.5k1414 gold badges111111 silver badges162162 bronze badges
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Reusable library to get human readable version of file size?
...unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
if abs(num) < 1024.0:
return "%3.1f%s%s" % (num, unit, suffix)
num /= 1024.0
return "%.1f%s%s" % (num, 'Yi', suffix)
Supports:
all currently known binary prefixes
negative and positive numbers
numbers larger than...
Python Charts库(Highcharts API的封装) - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...charts脚本
Highcharts中文网:http://v1.hcharts.cn/demo/index.php?p=10
Highcharts官网:http://api.highcharts.com/highcharts/title
http://nbviewer.jupyter.org/github/arnoutaertgeerts/python-highcharts/blob/master/Tutorial.ipynb#Data-configuration
中文API文档
https://api.hcharts.cn/h...
Positioning MKMapView to show multiple annotations at once
I've got several annotations I want to add to my MKMapView (it could 0-n items, where n is generally around 5). I can add the annotations fine, but I want to resize the map to fit all annotations onscreen at once, and I'm not sure how to do this.
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Compute a confidence interval from sample data
...y as np
import scipy.stats
def mean_confidence_interval(data, confidence=0.95):
a = 1.0 * np.array(data)
n = len(a)
m, se = np.mean(a), scipy.stats.sem(a)
h = se * scipy.stats.t.ppf((1 + confidence) / 2., n-1)
return m, m-h, m+h
you can calculate like this way.
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How do I empty an array in JavaScript?
...,'c','d','e','f']
Method 2 (as suggested by Matthew Crumley)
A.length = 0
This will clear the existing array by setting its length to 0. Some have argued that this may not work in all implementations of JavaScript, but it turns out that this is not the case. It also works when using "strict mod...
Why use softmax as opposed to standard normalization?
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170
There is one nice attribute of Softmax as compared with standard normalisation.
It react to lo...