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how to get first three characters of an NSString?
...
mystr=[mystr substringToIndex:3];
Be sure your string has atleast 3 ch.. o.e. it will crash the app.
Here are some other links to check NSsting operations...
Link1
Link2
Apple Link
...
jQuery: Check if div with certain class name exists
...s not exist
}
In this case if there is a truthy value at the first ([0]) index, then assume class exists.
Edit 04/10/2013: I've created a jsperf test case here.
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How do I write outputs to the Log in Android?
...final boolean FORCED_LOGGING = true;
private static final int CALLER_STACK_INDEX = 3;
public static void showLogs(String message) {
if (FORCED_LOGGING) {
StackTraceElement caller = Thread.currentThread().getStackTrace()[CALLER_STACK_INDEX];
String fullClassName = ca...
How to remove the first Item from a list?
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Python List
list.pop(index)
>>> l = ['a', 'b', 'c', 'd']
>>> l.pop(0)
'a'
>>> l
['b', 'c', 'd']
>>>
del list[index]
>>> l = ['a', 'b', 'c', 'd']
>>> del l[0]
>>> l
['b', 'c', 'd'...
Appending to an empty DataFrame in Pandas?
...re the output if you want it:
>>> df
Empty DataFrame
Columns: []
Index: []
>>> df = df.append(data)
>>> df
A
0 0
1 1
2 2
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n-grams in python, four, five, six grams?
... izip, islice, tee
s = 'spam and eggs'
N = 3
trigrams = izip(*(islice(seq, index, None) for index, seq in enumerate(tee(s, N))))
list(trigrams)
# [('s', 'p', 'a'), ('p', 'a', 'm'), ('a', 'm', ' '),
# ('m', ' ', 'a'), (' ', 'a', 'n'), ('a', 'n', 'd'),
# ('n', 'd', ' '), ('d', ' ', 'e'), (' ', 'e', 'g...
text-overflow:ellipsis in Firefox 4? (and FF5)
...gt; limit) {
// -4 to include the ellipsis size and also since it is an index
var trimmedText = $('#limitedWidthTextBox').val().substring(0, limit - 4);
trimmedText += ellipsis;
$('#limitedWidthTextBox').val(trimmedText);
}
I understand that there should be some way that all browsers ...
How to use multiple @RequestMapping annotations in spring?
... parameter, so declaration looks like this:
@RequestMapping(value=["/","/index","/login","/home"], method = RequestMethod.GET)
** Update - Works With Spring-Boot 2.2**
@RequestMapping(value={"/","/index","/login","/home"}, method = RequestMethod.GET)
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What is the meaning of the prefix N in T-SQL statements and when should I use it?
... it does the other way then performance will get hurt because the column's index (if available) wont be used.
2. Character set:
If the column is of type nvarchar or nchar, then always use the prefix N while specifying the character string in the WHERE criteria/UPDATE/INSERT clause. If you do not d...
How to access SOAP services from iPhone
...OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. ;-) Is it possible to add a proxy server between the iPhone and the web service? Perhaps something that converts REST into SOAP for you?
You could try CSOAP, a SOAP library that depends on libxml2 (which is includ...