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do..end vs curly braces for blocks in Ruby
...re is also a difference between the two that can be illustrated with this example:
puts [1,2,3].map{ |k| k+1 }
2
3
4
=> nil
puts [1,2,3].map do |k| k+1; end
#<Enumerator:0x0000010a06d140>
=> nil
This means that {} has a higher precedence than do..end, so keep that in mind when decidin...
Add and Remove Views in Android Dynamically?
How do I add and remove views such as TextView s from Android app like on the original stock Android contacts screen where you press a small icon on the right side of a field and it adds or deletes a field which consists of a TextView and an editTextView (from what I can see).
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builtins.TypeError: must be str, not bytes
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The outfile should be in binary mode.
outFile = open('output.xml', 'wb')
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How to add reference to System.Web.Optimization for MVC-3-converted-to-4 app
...onverted from MVC 3 to MVC 4 beta. It requires a line of code in global.asax, BundleTable.Bundles.RegisterTemplateBundles(); , which requires using System.Web.Optimization; at the top.
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How to check if Location Services are enabled?
...oviders are enabled or not.
LocationManager lm = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
boolean gps_enabled = false;
boolean network_enabled = false;
try {
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch(Exception ex) {}
try {
net...
Add a new column to existing table in a migration
I can't figure out how to add a new column to my existing database table using the Laravel framework.
11 Answers
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How to create a file with a given size in Linux?
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See next answer for a better, quicker approach
– elegant dice
Oct 9 '14 at 1:23
2
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How to make a cross-module variable?
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For one thing, it breaks people's expectations when they're reading code. "What's this 'foo' symbol being used here? Why can't I see where it's defined?"
– Curt Hagenlocher
Aug 6 '10 at 5:05
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Can I add color to bootstrap icons only using CSS?
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When you mouse-over text (like in a word processor) your cursor looks like an oversized capital "I" character, it's used for selecting text. In CSS it's referred to as cursor: text;. It's also known as "I-beam".
– Dai
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“Cross origin requests are only supported for HTTP.” error when loading a local file
...pload the model somewhere else and use jsonp and change the url to http://example.com/path/to/model
Origin is defined in RFC-6454 as
...they have the same
scheme, host, and port. (See Section 4 for full details.)
So even though your file originates from the same host (localhost), but as ...