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JavaScript: client-side vs. server-side validation

...ans users get faster feedback and more of them sign up, resulting in $100k extra revenue per year, it more than pays for the extra maintenance costs. DRY is a very good principle, but it's not the only consideration. Code quality is really measured in how well it serves users and an organization in ...
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convert ArrayList to JSONArray

... Collection (arrayList is a subclass of Collection) like so: ArrayList<String> list = new ArrayList<String>(); list.add("foo"); list.add("baar"); JSONArray jsArray = new JSONArray(list); References: jsonarray constructor: http://developer.android.com/reference/org/json/JSONArray.htm...
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Why can I add named properties to an array as if it were an object?

...f lastIndexOf map pop push reverse shift slice some sort splice toSource toString unshift valueOf share | improve this answer | follow | ...
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Extending from two classes

...s(this); } //Implement each method you want to use. public String getInfoFromOtherClass() { return mClass.getInfoFromOtherClass(); } } this is the best solution I have come up with. You can get the functionality from both classes and Still only actually be of one...
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How do I obtain a Query Execution Plan in SQL Server?

...ackExchange/dapper-dot-net">Dapper.net</…> connection.Query<string>("SELECT query_plan FROM sys.dm_exec_cached_plans CROSS APPLY sys.dm_exec_sql_text(plan_handle) CROSS APPLY sys.dm_exec_query_plan(plan_handle) WHERE TEXT LIKE N'%Your Original Query Goes Here%'"); The %'s are if ...
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Bootstrap 3 and 4 .container-fluid with grid adding unwanted padding

... That's only possible via an extra class... I've defined a class named remove-padding which just has a .remove-padding {padding-left: 0; padding-right: 0; margin-left: 0; margin-right: 0} As far as I know, there is no predefined class to remove the defau...
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ExpressJS How to structure an application?

...nything that can cleanly be separated out from your app entirely should be extracted into a module either for internal use or publicly published on npm. However, for the medium-sized applications that are the scope here, the overhead of this can add tedium to your workflow without commensurate value...
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How do I install pip on macOS or OS X?

... An extra warning: don't run this when a homebrew based python installed and occurs earlier in PATH (e.g. when you change /etc/paths): it would install pip with root credentials for the wrong python – acidju...
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Multiline string literal in C#

Is there an easy way to create a multiline string literal in C#? 13 Answers 13 ...
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Will the base class constructor be automatically called?

... a need to call the one with parameters: class Person { public Person(string random) { } } class Customer : Person { public Customer(string random) : base (random) { } } share | ...