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Uninstall old versions of Ruby gems
...ion 1.1.9
If you still facing some exception to install gem, like:
invalid gem: package is corrupt, exception while verifying: undefined method `size' for nil:NilClass (NoMethodError) in /home/rails/.rvm/gems/ruby-2.1.1@project/cache/nokogiri-1.6.6.2.gem
the, you can remove it from cache:
rm /h...
How to click first link in list of items after upgrading to Capybara 2.0?
...").click
Capybara finds several .item's so it raises an exception. I consider this behavior of Capybara 2 very good.
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Duplicate headers received from server
...on commas to remove them and you should be fine. My function to make a valid filename is below.
public static string MakeValidFileName(string name)
{
string invalidChars = Regex.Escape(new string(System.IO.Path.GetInvalidFileNameChars()));
string invalidReStr = string.Forma...
If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
...
https://developer.android.com/guide/topics/location/strategies.html#Permission
Note: If you are using both NETWORK_PROVIDER and GPS_PROVIDER, then you need to request only the ACCESS_FINE_LOCATION permission, because it includes permission for ...
What's the difference of $host and $http_host in Nginx
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How to change column datatype from character to numeric in PostgreSQL 8.4
...s an assignment cast from old data type to new. A USING clause must be provided if there is no implicit or assignment cast from old to new type.
So this might work (depending on your data):
alter table presales alter column code type numeric(10,0) using code::numeric;
-- Or if you prefer standard...
How to disable editing of elements in combobox for c#?
...want their content to be static so that a user cannot change the values inside when the application is ran. I also do not want the user adding new values to the ComboBox
...
socket.emit() vs. socket.send()
...e. It sees like socket.emit() can do everything that socket.on() can. Why did they have to make that function?
– node ninja
Jul 19 '12 at 23:20
2
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What does '--set-upstream' do?
...om the <remote-branch> into the current local branch.
One way to avoid having to explicitly type --set-upstream is to use its shorthand flag -u as follows:
git push -u origin local-branch
This sets the upstream association for any future push/pull attempts automatically.
For more details, c...
Aligning UIToolBar items
...align left and I'd like to align center so there isn't a gap on the right side. I don't see an align property on UIToolBar . Is there another way to accomplish this?
...