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How to verify if a file exists in a batch file?
... IF /? help file: The ELSE clause must occur on the same line as the command after the IF. This burned me. hope it helps you.
– funkymushroom
Feb 27 '14 at 17:58
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How do I remove a MySQL database?
...database cannot be dropped, even though you have no typos in the statement and do not miss the ; at the end, enclose the database name in between backticks:
mysql> drop database `my-database`;
Backticks are for databases or columns, apostrophes are for data within these.
For more information,...
Is the 'type' attribute necessary for tags?
... This attribute specifies the scripting language of the element's contents and overrides the default scripting language. The scripting language is specified as a content type (e.g., "text/javascript"). Authors must supply a value for this attribute. There is no default value for this attribute.
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How to reload or re-render the entire page using AngularJS
After rendering the entire page based on several user contexts and having made several $http requests, I want the user to be able to switch contexts and re-render everything again (resending all $http requests, etc). If I just redirect the user somewhere else, things work properly:
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wpf: how to show tooltip when button disabled by command?
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Make tooltip visible for ALL disabled Buttons and Checkboxes:
<Window.Resources>
<Style TargetType="{x:Type Button}" BasedOn="{StaticResource {x:Type Button}}>
<Setter Property="ToolTipService.ShowOnDisabled" Value="true"/>
</Style&g...
How to check if the string is empty?
... answered Mar 5 '12 at 20:10
Andrew ClarkAndrew Clark
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Convert array to JSON
...bility:
https://github.com/douglascrockford/JSON-js/blob/master/json2.js
And call:
var myJsonString = JSON.stringify(yourArray);
Note: The JSON object is now part of most modern web browsers (IE 8 & above). See caniuse for full listing. Credit goes to: @Spudley for his comment below
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Hide Twitter Bootstrap nav collapse on click
... FYI, this doesn't work in all cases. If the window is re sized and it brings up the mobile menu it will be open by default.
– Andrew Boes
Sep 13 '13 at 19:59
8
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How to find keys of a hash?
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As I understand this Object.prototype.keys will make keys available to all sub-classes of Object, therefore for all objects. Which probably you want to if you're trying to use OOP. Anyway this really depends on your requirements.
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Why does String.split need pipe delimiter to be escaped?
...lit is a regular expression, where in the '|' has a special meaning of OR, and a '\|' means a literal '|' so the string "\\|" means the regular expression '\|' which means match exactly the character '|'.
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