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How to check whether a string is a valid HTTP URL?

...You may want to add more conditions to the uriResult.Scheme == ... Specifically https. It depends on what you need this for, but this small change was all I needed for it to work perfectly for me. – Fiarr Jan 22 '14 at 19:04 ...
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write a shell script to ssh to a remote machine and execute commands

...ame hostname "pwd; ls" This will disable the host key check and automatically add the host key to the list of known hosts. If you do not want to have the host added to the known hosts file, add the option -o UserKnownHostsFile=/dev/null. Note that this disables certain security checks, for exampl...
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How to convert an Int to a String of a given length with leading zeros to align?

...this Q&A becomes the canonical compendium, scala> import java.text._ import java.text._ scala> NumberFormat.getIntegerInstance.asInstanceOf[DecimalFormat] res0: java.text.DecimalFormat = java.text.DecimalFormat@674dc scala> .applyPattern("0000000") scala> res0.format(123) res2: S...
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What is the difference between and ? [duplicate]

... answered Oct 25 '11 at 12:03 pappap 24.6k55 gold badges3636 silver badges4646 bronze badges ...
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Determine the number of NA values in a column

...nt the number of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following: ...
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MySQL Workbench Dark Theme

...ave full of excitement bringing up my first question. My first question is all about changing the color appearance of MySQL Workbench from the default of white background to its negative value of black. ...
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DropDownList in MVC 4 with Razor

...iew to cast it , like this: @Html.DropDownListFor(model => model.model_year, ViewBag.Years as List<SelectListItem>, "-- Select Year --") – Bashar Abu Shamaa Feb 26 '16 at 19:23 ...
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Optional Parameters in Go?

...ety of methods with the same name but different signatures was occasionally useful but that it could also be confusing and fragile in practice. Matching only by name and requiring consistency in the types was a major simplifying decision in Go's type system. ...
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How to set the UITableView Section title programmatically (iPhone/iPad)?

... answered May 8 '12 at 20:27 AlladinianAlladinian 31.3k44 gold badges7575 silver badges8181 bronze badges ...
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UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]

...// Will return "F". In contrast to that, the ImmutableMap of Guava is really immutable: It is a true copy of a given map, and nobody may modify this ImmutableMap in any way. Update: As pointed out in a comment, an immutable map can also be created with the standard API using Map<String, S...