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How do I check if a variable exists?

...have nested functions, variables in outer scopes. If you want to check for all of them, you're probably best off triggering NameError after all. – Petr Viktorin Jun 10 '14 at 20:18 ...
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mongoose vs mongodb (nodejs modules/extensions), which better? and why?

...ith can cause it to not save anything, w/o error. We have found that using all lowercase names works best. E.g. instead of doing something like mongooseInstace.model('MyCollection', { "_id": Number, "xyz": String }) it's better to do (even though the collection name is really MyCollection): mongoose...
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How can I read a large text file line by line using Java?

...ce the Stream in a try-with-resource block to ensure the #close method is called on it, otherwise the underlying file handle is never closed until GC does it much later. share | improve this answer ...
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How can I change the text color with jQuery?

... @dan both statements are valid syntax: see api.jquery.com/css. (And they both worked when I tried them.) – Carl Sharman Aug 29 '19 at 10:54 ...
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Call js-function using JQuery timer

...ing that version. $('#foo').slideUp(300).delay(800).fadeIn(400); http://api.jquery.com/delay/ Ooops....my mistake you were looking for an event to continue triggering. I'll leave this here, someone may find it helpful. s...
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Multiple Order By with LINQ [duplicate]

... Guess I should fully get through the API before asking the question ;) It also looks like you can chain .ThenBy() statements as many times as you need to. Thanks again! – sdanna Feb 23 '10 at 14:51 ...
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How to Handle Button Click Events in jQuery?

... alert("button"); }); See documentation for more information: https://api.jquery.com/click/ share | improve this answer | follow | ...
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How do I update the element at a certain position in an ArrayList? [duplicate]

..., then just do: arrList.set(5, newValue); This can be found in the java api reference here. share | improve this answer | follow | ...
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In Node.js, how do I turn a string to a json? [duplicate]

For example, a HTTP REST API just returned me a JSON, but of course it's a string right now. How can I turn it into a JSON? ...
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how to make a jquery “$.post” request synchronous [duplicate]

...ou have a full detail of the $.ajax() parameters: jQuery.ajax() – jQuery API Documentation. jQuery >=1.8 "async:false" deprecation notice jQuery >=1.8 won't block the UI during the http request, so we have to use a workaround to stop user interaction as long as the request is processed. ...