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Check if a variable is of function type
...& obj.constructor && obj.call && obj.apply);
};
See: http://jsperf.com/alternative-isfunction-implementations
EDIT: updated tests suggest that typeof might be faster, see http://jsperf.com/alternative-isfunction-implementations/4
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Use rvmrc or ruby-version file to set a project gemset with RVM?
...igured out. (maybe this is a convention I’m unfamiliar with.) I actually googled the message and found this answer because the awkward phrasing and the [] made me unsure what to actually run.
– zem
Apr 1 '14 at 22:52
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How to check if a json key exists?
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JSONObject class has a method named "has":
http://developer.android.com/reference/org/json/JSONObject.html#has(java.lang.String)
Returns true if this object has a mapping for name. The mapping may be NULL.
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How to trigger a build only if changes happen on particular set of files
...emely useful since one of my Git trees has multiple independent projects.
https://github.com/jenkinsci/git-plugin/pull/49
Update: The Git plugin (1.16) now has the 'included' region feature.
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How to get file_get_contents() to work with HTTPS?
...lling an SSL URL), but now when I am testing it on the working server with HTTPS, it's failing with the error message "failed to open stream".
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How to center buttons in Twitter Bootstrap 3?
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According to the Twitter Bootstrap documentation: http://getbootstrap.com/css/#helper-classes-center
<!-- Button -->
<div class="form-group">
<label class="col-md-4 control-label" for="singlebutton"></label>
<div class="col-md-4 center-block...
Git command to show which specific files are ignored by .gitignore
... and the second only two. (.gitignore~, index.php~, sql/create_users.sql~, www/index.php~) (Would remove .gitignore~, Would remove index.php~). Am I missins something here?
– Cesar
Jun 15 '11 at 21:00
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Android: Coloring part of a string using TextView.setText()?
... in your app module level build.gradle for it to work:
repositories {
google()
}
dependencies {
implementation 'androidx.core:core-ktx:0.3'
}
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“Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 20
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FWIW, this question ranks highly on Google when you search for this error message. This answer was correct for me (I didn't realize I was in release mode).
– Nate Barbettini
May 18 '18 at 13:54
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Is it possible to read the value of a annotation in java?
...answers given so far are perfectly valid, one should also keep in mind the google reflections library for a more generic and easy approach to annotation scanning, e.g.
Reflections reflections = new Reflections("my.project.prefix");
Set<Field> ids = reflections.getFieldsAnnotatedWith(javax....