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Adding Core Data to existing iPhone project
...h the applicationDoumentsDirectory method should return NSURL instead of NSString.
– NSRover
May 9 '14 at 12:29
9
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Can I change the viewport meta tag in mobile safari on the fly?
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@the_nuts You're right, appendChild expects a node, not a string. Updated. Thanks.
– markquezada
Jun 22 '15 at 21:18
1
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Necessary to add link tag for favicon.ico?
...like PNG check out this question.
For cache busting purposes:
Add a query string to the path for cache-busting purposes:
<link rel="icon" href="/favicon.ico?v=1.1">
Favicons are very heavily cached and this a great way to ensure a refresh.
Footnote about default location:
As far as th...
Mongodb Explain for Aggregation framework
...regation stages and expressions including support for working with arrays, strings, and facets.
There are also a number of Aggregation Pipeline Optimizations that automatically happen depending on your MongoDB server version. For example, adjacent stages may be coalesced and/or reordered to impro...
How to check file MIME type with javascript before upload?
...r = "";
for(var i = 0; i < arr.length; i++) {
header += arr[i].toString(16);
}
console.log(header);
// Check the file signature against known types
};
fileReader.readAsArrayBuffer(blob);
You can then determine the real MIME type like so (more file signatures here and here):
swit...
How to generate the “create table” sql statement for an existing table in postgreSQL
...ttypmod) as column_type,
CASE WHEN
(SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) IS NOT NULL THEN
'...
NSInvocation for Dummies?
...o the target object) later on.
For example, let's say you want to add a string to an array. You would normally send the addObject: message as follows:
[myArray addObject:myString];
Now, let's say you want to use NSInvocation to send this message at some other point in time:
First, you would...
Efficiently convert rows to columns in sql server
...######################
--###| Step 2 - Preparing lists of column groups as strings:
--#######################################################################################################################
DECLARE @ColumnName nvarchar(128)
DECLARE @Destiny ...
Best way to use Google's hosted jQuery, but fall back to my hosted library on Google fail
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Small fix from a validator fanatic: The string '</' is not allowed in JavaScript, because it could be misinterpreted as the end of the script tag (SGML short tag notation). Do '<'+'/script>' instead. Cheers,
– Boldewyn
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Truly understanding the difference between procedural and functional
...unctions to produce a new function that determines whether the length of a string is odd.
map(..., words) calls that new function for each element in words, ultimately returning a new list of boolean values, each indicating whether the corresponding word has an odd number of characters.
apply(and, ....