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handlerbars.js check if list is empty

Is there a way in Handlebars.js templating to check if the collection or list is null or empty, before going and iterating through the list/collection? ...
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AngularJS - difference between pristine/dirty and touched/untouched

AngularJS Developer Guide - Forms tell there are many styles and directives regarding forms and fields. For each one, a CSS class: ...
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How to check whether a file or directory exists?

I want to check the existence of file ./conf/app.ini in my Go code, but I can't find a good way to do that. 5 Answers ...
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Vim: Creating parent directories on save

If I invoke vim foo/bar/somefile but foo/bar don't already exist, Vim refuses to save. 6 Answers ...
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xcode-select active developer directory error

Saw the following error when running an npm install which required node-gyp ... but could be triggered by anything which requires xcode-select . ...
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Extract a substring from a string in Ruby using a regular expression

How can I extract a substring from within a string in Ruby? 5 Answers 5 ...
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Converting user input string to regular expression

I am designing a regular expression tester in HTML and JavaScript. The user will enter a regex, a string, and choose the function they want to test with (e.g. search, match, replace, etc.) via radio button and the program will display the results when that function is run with the specified argument...
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Java 8 NullPointerException in Collectors.toMap

The Java 8 Collectors.toMap throws a NullPointerException if one of the values is 'null'. I don't understand this behaviour, maps can contain null pointers as value without any problems. Is there a good reason why values cannot be null for Collectors.toMap ? ...
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Git command to show which specific files are ignored by .gitignore

I am getting my feet wet with Git and have the following issue: 9 Answers 9 ...
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CSS for grabbing cursors (drag & drop)

I have a JavaScript webapp where the user needs to grab the background to move the whole screen around. So I want the cursor to change when they're hovering over the background. The -moz-grab and -moz-grabbing CSS cursors are ideal for this. Of course, they only work in Firefox... are there ...