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Node.js check if file exists
...
if (fs.existsSync('/etc/file')) {
console.log('Found file');
}
The API doc says how existsSync work:
Test whether or not the given path exists by checking with the file system.
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Which maven dependencies to include for spring 3.0?
...utilities used by other modules.
Define this if you use Spring Utility APIs
(org.springframework.core.*/org.springframework.util.*)-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.s...
Angular.js programmatically setting a form field to dirty
...ular version up to 1.3.3. Starting with 1.3.4 you should use newly exposed API method $setDirty() from ngModel.NgModelController.
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How do I avoid capturing self in blocks when implementing an API?
...self;
self.progressBlock = ^(CGFloat percentComplete) {
[dp.delegate myAPI:dp isProcessingWithProgress:percentComplete];
}
The __block keyword marks variables that can be modified inside the block (we're not doing that) but also they are not automatically retained when the block is retained (u...
Do you have to put Task.Run in a method to make it async?
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So if I have to consume a synchronous external api within a web api controller, I should NOT wrap the synchronous call in Task.Run()? As you said, doing so will keep the initial request thread unblocked but it's using another pool thread to call the external api. In fact ...
How to differentiate single click event and double click event?
...uirksmode.org/dom/events/click.html
Or the one provided by jQuery: http://api.jquery.com/dblclick/
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Pretty graphs and charts in Python [closed]
...teractive work, Matplotlib is the mature standard. It provides an OO-style API as well as a Matlab-style interactive API.
Chaco is a more modern plotting library from the folks at Enthought. It uses Enthought's Kiva vector drawing library and currently works only with Wx and Qt with OpenGL on the ...
EditText underline below text property
...s on, the color you set won't take effect, instead, it has a focus color.
API Reference:
Drawable#setColorFilter
Drawable#clearColorFilter
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ActionController::InvalidAuthenticityToken
...verify_authenticity_token, :only => [:index, :show]
Reference: http://api.rubyonrails.org/classes/ActionController/RequestForgeryProtection/ClassMethods.html
Note added by barlop- Rails 4.2 deprecated skip_before_filter in favour of skip_before_action https://guides.rubyonrails.org/4_2_releas...
How to attach my repo to heroku app
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git push
Put empty (blank) when the Git prompt for username, and your API Key for the password. You can get your API Key by showing it from the link below.
https://dashboard.heroku.com/account
Note: You cannot authenticate with the Heroku HTTP Git endpoint using your Heroku username (email) ...