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Formatting floats without trailing zeros
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The only problem with that is '%.2f' % -0.0001 will leave you with -0.00 and ultimately -0.
– Kos
Dec 7 '12 at 13:14
3
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Improving bulk insert performance in Entity framework [duplicate]
...tityContainerMapping.EntitySetMaps' not found."
– cjb110
Nov 13 '14 at 10:27
Which version of EF are you using?
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What does “|=” mean? (pipe equal operator)
...OR to add flags
int myFlags = DEFAULT_SOUND | DEFAULT_VIBRATE; // same as 001 | 010, producing 011
so
myFlags |= DEFAULT_LIGHTS;
simply means we add a flag.
And symmetrically, we test a flag is set using & :
boolean hasVibrate = (DEFAULT_VIBRATE & myFlags) != 0;
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Python unit test with base and sub class
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Ran 4 tests in 0.001s
OK
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Spring MVC: How to perform validation?
...= 1, max = 20)
private String name;
@NotNull
@Min(1)
@Max(110)
private Integer age;
// getters, setters
}
Annotations above are javax.validation.constraints annotations. You can also use Hibernate's
org.hibernate.validator.constraints, but it doesn't look like you are usi...
Ruby Arrays: select(), collect(), and map()
...ct here, but the block is given the key and value in this case:
irb(main):001:0> h = {:sku=>"507772-B21", :desc=>"HP 1TB 3G SATA 7.2K RPM LFF (3 .", :qty=>"", :qty2=>"1", :price=>"5,204.34 P"}
irb(main):002:0> h.select { |key, value| !value.empty? }
=> {:sku=>"507772-B21"...
How to generate a git patch for a specific commit?
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Adam Liss
44.1k1111 gold badges100100 silver badges140140 bronze badges
answered Jul 12 '11 at 0:43
manojldsmanojlds
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Oracle SQL: Update a table with data from another table
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YahiaYahia
65.8k77 gold badges100100 silver badges128128 bronze badges
4
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How to get execution time in rails console?
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With benchmark-ips gem:
2.3.0 :001 > require 'benchmark/ips'
=> true
2.3.0 :002 > Benchmark.ips do |x|
2.3.0 :003 > x.report("add: ") { 1+2 }
2.3.0 :004?> x.report("div: ") { 1/2 }
2.3.0 :005?> x.report("iis: ") { 1/2.0...
Using 'return' in a Ruby block
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Simply use next in this context:
$ irb
irb(main):001:0> def thing(*args, &block)
irb(main):002:1> value = block.call
irb(main):003:1> puts "value=#{value}"
irb(main):004:1> end
=> nil
irb(main):005:0>
irb(main):006:0* thing {
irb(main):007:1* ret...