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  • In javascript, is an empty string always false as a boolean?

    in javascript, var a = ''; var b = (a) ? false : true; // fixed! var b will be set to false. is this a defined behavior that can be relied upon?

  • html - What jsf component can render a div tag?

    Eg: h:inputText will render a "input type='text'". What jsf tag can render a "div" tag?

  • Is it possible to assign numeric value to an enum in Java?

    Is anything like this possible in Java? Can one assign custom numeric values to enum elements in Java? public enum EXIT_CODE { A=104, B=203; }

  • javascript - Loading cross-domain endpoint with jQuery AJAX

    I'm trying to load a cross-domain HTML page using AJAX but unless the dataType is "jsonp" I can't get a response. However using jsonp the browser is expecting a script mime type but is receiving "...

  • python - Extracting specific selected columns to new DataFrame as a copy

    I have a pandas DataFrame with 4 columns and I want to create a new DataFrame that only has three of the columns. This question is similar to: Extracting specific columns from a data frame but fo...

  • How to get dom element in angular 2

    This question already has an answer here: How can I select an element in a component template? 10 answers ...

  • javascript - boolean in an if statement

    Today I've gotten a remark about code considering the way I check whether a variable is true or false in a school assignment. The code which I had written was something like this: var booleanVal...

  • javascript - The most accurate way to check JS object's type?

    The typeof operator doesn't really help us to find the real type of an object. I've already seen the following code : Object.prototype.toString.apply(t) Question: Is it the most accurate w...

  • c# - Setting Icon for wpf application (VS 08)

    Before going much further i'll mention I have tried solutions in following: How do I set the icon for my application in visual studio 2008? Set application icon from resources in VS 05 I am try...

  • regex - Unicode equivalents for \w and \b in Java regular expressions?

    Many modern regex implementations interpret the \w character class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like ...

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