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onchange event on input type=range is not triggering in firefox while dragging

... In other browsers, the "change" event is effectively silenced (to prevent extra and sometimes not-readily-apparent events from firing). In addition, the "input" event fires its listener only when the range/slider's value changes. For some browsers (e.g. Firefox) this occurs because the listener is ...
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E11000 duplicate key error index in mongodb mongoose

... var userSchema = new mongoose.Schema({ local: { name: { type: String }, email : { type: String, require: true, index:true, unique:true,sparse:true}, password: { type: String, require:true }, }, facebook: { id : { type: String }, token : { type:...
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Group By Multiple Columns

... Well I think you are missing an extra ) at the end. You are not closing the () – StuiterSlurf Jun 20 '17 at 9:22 ...
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C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术

...for the array passed to your function by checking the .length property for string function or by some other means. function CountParam(aParam) { var strPresent = "Parameter is : " + (aParam.length>0 ? "Present": "Not present"); return strPresent; } The same technique may be used ...
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How does a “stack overflow” occur and how do you prevent it?

...w (in C/C++, at least) is to declare some enormous variable on the stack. char hugeArray[100000000]; That'll do it. share | improve this answer | follow | ...
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Why are regular expressions so controversial? [closed]

...p;domain)) (?<local_part> (?&dot_atom) | (?&quoted_string)) (?<domain> (?&dot_atom) | (?&domain_literal)) (?<domain_literal> (?&CFWS)? \[ (?: (?&FWS)? (?&dcontent))* (?&FWS)? \] (?&...
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How do I 'svn add' all unversioned files to SVN?

... awk? Awk can do pattern matching: awk '/^[?]/{print $2}'; No need for the extra grep process. – bdrx Feb 26 '15 at 13:59 1 ...
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Rails respond_with: how does it work?

...tion => posts_path) # Note that if you want to pass a URL with a query string # then the location option would be needed. # /users?scope=active respond_with(@user, :location => users_path(:scope => 'active')) As an alternative, the responders gem not only provides some modules for over...
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JavaScript for detecting browser language preference [duplicate]

...tecting that nav.languages is an array, you should use: Object.prototype.toString.call(nav.languages) === '[object Array]' – Jaume Mussons Abad Nov 17 '17 at 7:31 ...
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How to compare two colors for similarity/difference

...For posterity, here's the relevant C code: typedef struct { unsigned char r, g, b; } RGB; double ColourDistance(RGB e1, RGB e2) { long rmean = ( (long)e1.r + (long)e2.r ) / 2; long r = (long)e1.r - (long)e2.r; long g = (long)e1.g - (long)e2.g; long b = (long)e1.b - (long)e2.b;...