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What's the difference between an id and a class?

... 324 ids must be unique where as class can be applied to many things. In CSS, ids look like #element...
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“elseif” syntax in JavaScript

... answered Oct 23 '10 at 19:08 JeffJeff 21.2k66 gold badges4747 silver badges5555 bronze badges ...
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Query to count the number of tables I have in MySQL

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Arrays vs Vectors: Introductory Similarities and Differences [closed]

... | edited May 23 '17 at 12:34 Community♦ 111 silver badge answered Feb 26 '13 at 0:55 ...
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Best way to check if a Data Table has a null value in it

... 162 Try comparing the value of the column to the DBNull.Value value to filter and manage null values...
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What's “tools:context” in Android layout files?

... Tim 36.1k1313 gold badges109109 silver badges129129 bronze badges answered Jun 18 '12 at 7:56 Nikolay ElenkovNikolay Elenkov ...
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Function to clear the console in R and RStudio

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When should I use RequestFactory vs GWT-RPC?

...am trying to figure out if I should migrate my gwt-rpc calls to the new GWT2.1 RequestFactory cals. 8 Answers ...
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Difference between database and schema

...missions by schema. EDIT for additional question drop schema test1 Msg 3729, Level 16, State 1, Line 1 Cannot drop schema 'test1' because it is being referenced by object 'copyme'. You cannot drop a schema when it is in use. You have to first remove all objects from the schema. Related reading: ...