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Learning Python from Ruby; Differences and Similarities
...rate using multiple indexes. For example, to find all the palindromes in a string (assuming you have a function p() that returns true for palindromes), all you need is a single list comprehension:
s = 'string-with-palindromes-like-abbalabba'
l = len(s)
[s[x:y] for x in range(l) for y in range(x,l+1...
Check that an email address is valid on iOS [duplicate]
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Good cocoa function:
-(BOOL) NSStringIsValidEmail:(NSString *)checkString
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9...
How to convert string to boolean php
How can I convert string to boolean ?
20 Answers
20
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Writing string to a file on a new line every time
I want to append a newline to my string every time I call file.write() . What's the easiest way to do this in Python?
10 A...
Can't access object property, even though it shows up in a console log
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Instead, try console.log(Object.keys(config)), or even console.log(JSON.stringify(config)) and you will see the keys, or the state of the object at the time you called console.log.
You will (usually) find the keys are being added after your console.log call.
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How do I see active SQL Server connections?
...or loginame - is that an artifact from when column names were limited to 8 chars? lol
– nothingisnecessary
Sep 12 '14 at 23:09
14
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What is the canonical way to determine commandline vs. http execution of a PHP script?
...example inspects the first 3 characters, whilst the description states the string should be exactly "cgi" but, other than that, I think this is perfect.
– Bobby Jack
Oct 6 '08 at 11:17
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What is a NullPointerException, and how do I fix it?
...your code can help avoid null pointer exception. eg when checking an input string with a constant string you should start with the constant string like here: if ("SomeString".equals(inputString)) {} //even if inputString is null no exception is thrown. So there are a bunch of things that you can do ...
Get Android .apk file VersionName or VersionCode WITHOUT installing apk
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final PackageManager pm = getPackageManager();
String apkName = "example.apk";
String fullPath = Environment.getExternalStorageDirectory() + "/" + apkName;
PackageInfo info = pm.getPackageArchiveInfo(fullPath, 0);
Toast.makeText(this, "VersionCode : " + info.versi...
Using Git, how could I search for a string across all branches?
...Git, how could I search within all files in all local branches for a given string?
5 Answers
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