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How to check if a map contains a key in Go?

... the value of "foo" from the map or a "zero value" (in this case the empty string) and ok will receive a bool that will be set to true if "foo" was actually present in the map evaluates ok, which will be true if "foo" was in the map If "foo" is indeed present in the map, the body of the if stateme...
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How to remove all rows in a numpy.ndarray that contain non-numeric values

...es are missing (either by just not being there, being NaN , or by being a string written " NA "). 1 Answer ...
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What is LDAP used for?

...ibutes has a type and one or more values. The types are typically mnemonic strings, like cn for common name, or mail for email address. The syntax of values depend on the attribute type. For example, a cn attribute might contain the value Babs Jensen. A mail attribute might contain the value babs@ex...
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Regex Pattern to Match, Excluding when… / Except between

...alizes the context you want to ignore by replacing potentially conflicting strings. If you only want to match, then you can replace with an empty string, then run your match in the second step. If you want to replace, you can first replace the strings to be ignored with something distinctive, for in...
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What is a “surrogate pair” in Java?

I was reading the documentation for StringBuffer , in particular the reverse() method. That documentation mentions something about surrogate pairs . What is a surrogate pair in this context? And what are low and high surrogates? ...
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How to parse a string into a nullable int

I'm wanting to parse a string into a nullable int in C#. ie. I want to get back either the int value of the string or null if it can't be parsed. ...
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Replace line break characters with in ASP.NET MVC Razor view

... Try the following: @MvcHtmlString.Create(Model.CommentText.Replace(Environment.NewLine, "<br />")) Update: According to marcind's comment on this related question, the ASP.NET MVC team is looking to implement something similar to the <%: an...
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How to send a stacktrace to log4j?

... The logger takes an object for its first argument and will toString() it. However the second argument has to be a Throwable and displays the stack trace. – Peter Lawrey Dec 3 '10 at 16:50 ...
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AngularJS : Difference between the $observe and $watch methods

.../watch an "expression", where the expression can be either a function or a string. If the expression is a string, it is $parse'd (i.e., evaluated as an Angular expression) into a function. (It is this function that is called every digest cycle.) The string expression can not contain {{}}'s. $wat...
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Explode string by one or more spaces or tabs

How can I explode a string by one or more spaces or tabs? 10 Answers 10 ...