ruby hash merge vs merge!

patrick204nqh answered on May 6, 2020 Popularity 8/10 Helpfulness 1/10

answer ruby hash merge vs merge!

related ruby hash merge

ruby hash merge vs merge!

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h1 = { "a" => 100, "b" => 200 }
h2 = { "b" => 254, "c" => 300 }
h1.merge!(h2)   #=> {"a"=>100, "b"=>254, "c"=>300}
h1              #=> {"a"=>100, "b"=>254, "c"=>300}

h1 = { "a" => 100, "b" => 200 }
h2 = { "b" => 254, "c" => 300 }
h1.merge!(h2) { |key, v1, v2| v1 }
                #=> {"a"=>100, "b"=>200, "c"=>300}
h1              #=> {"a"=>100, "b"=>200, "c"=>300}

Popularity 8/10 Helpfulness 1/10 Language ruby

Source: apidock.com

Tags: merge ruby ruby-hash

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Contributed on Apr 20 2022

patrick204nqh

0 Answers Avg Quality 2/10

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ruby hash merge

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h1 = { "a" => 100, "b" => 200 }
h2 = { "b" => 254, "c" => 300 }
h1.merge(h2)   #=> {"a"=>100, "b"=>254, "c"=>300}
h1.merge(h2){|key, oldval, newval| newval - oldval}
               #=> {"a"=>100, "b"=>54,  "c"=>300}
h1             #=> {"a"=>100, "b"=>200}

Popularity 9/10 Helpfulness 4/10 Language ruby

Source: apidock.com

Tags: merge merg

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Contributed on May 06 2020

Hungry Hedgehog

0 Answers Avg Quality 2/10

ruby hash merge vs merge!

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