Bob questions

• SQL limit by group by
• eight queens problem in Python
• Angular chaining AJAX calls
• Longest distinct consecutive list in Python
• groovy GroovyTestCase shouldFail exception message
• Groovy modify map elements while iterating a map
• numpy array each element multiplication with matrix
• javascript button to download a file
• python order of elements in set
• R create new column based on if else condition

Bob answers