{"id":1071,"date":"2022-08-30T15:11:54","date_gmt":"2022-08-30T15:11:54","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2013\/11\/09\/problem-about-reduce-collection-of-common-programming-errors\/"},"modified":"2022-08-30T15:11:54","modified_gmt":"2022-08-30T15:11:54","slug":"problem-about-reduce-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2022\/08\/30\/problem-about-reduce-collection-of-common-programming-errors\/","title":{"rendered":"problem about reduce-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/a78c2495717d6738dd65000f7f97d3a1?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nNate-<br \/>\njavascript object underscore.js reduce<br \/>\nI have an array like the following.[ { sku: &#8216;TEA-BLCK&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-ELGY&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-CHAI&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-GREN&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-ELGY&#8217;, price: &#8217;10&#8217;, quanti<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/eb149575d3dcbd3aca84cc4d9d689474?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nHellnar<br \/>\npython attributes reduce getattr<br \/>\nI used to use reduce and getattr functions for calling attributes in a chain way like &#8220;thisattr.thatattr.blaattar&#8221; IE:reduce(getattr, &#8216;x<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/2b65ffbed69ff64c3a5212b8840fc0c8?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nJames<br \/>\nruby reduce<br \/>\nI&#8217;m counting the number of times an item appears in an Enumeration.irb(main):003:0&gt; (1..3).reduce(0) {|sum, p| sum += 1 if p == 1} =&gt; nil irb(main):004:0&gt; (1..3).<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/06b1e43c09d646b08212463657b81e1a?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nal-dr<br \/>\nphp load reduce<br \/>\ngood evening, i have these five functions that i use to reduce server load :\/\/ unset all vars function unset_all_vars() {$vars = func_get_args();foreach($vars[0] as $key =&gt; $val){unset($GLOBALS[$key]);}return serialize($vars[0]); } unset_all_vars(get_defined_vars()); \/\/ unset all const function unset_all_const() {$vars =<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/e848cdc75d0a22d7a3e370bc9aefb8c1?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nbox<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/d00446f06dc472fe0f88af617dba71a5?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nsprugman<br \/>\njavascript reduce<br \/>\nI&#8217;ve got an object like:{a : &#8216;foo&#8217;,b : &#8216;bar&#8217;,c : &#8216;foo&#8217;,d : &#8216;baz&#8217;,e : &#8216;bar&#8217; }I want to reduce the duplicates like:{ac : &#8216;foo&#8217;,be : &#8216;bar&#8217;,d : &#8216;baz&#8217;<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/1db4c4b86eb3f2c8df06050e8f28d51e?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nPavel S.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/8c8dd2e41a62328fe8502000bc5a45ca?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nDustin Getz<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/77be79e7aa44cf2bee8517a2553555c6?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nMr E<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/09c27c824091512f60b65c8762456839?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nEmre Sevin\u00e7<\/li>\n<\/ul>\n<p id=\"rop\"><small>Originally posted 2013-11-09 23:21:16. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>Nate- javascript object underscore.js reduce I have an array like the following.[ { sku: &#8216;TEA-BLCK&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-ELGY&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-CHAI&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-GREN&#8217;, price: &#8217;10&#8217;, quantity: &#8216;1&#8217; },{ sku: &#8216;TEA-ELGY&#8217;, price: &#8217;10&#8217;, quanti Hellnar python attributes reduce getattr I used to use [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1071","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/1071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=1071"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/1071\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=1071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=1071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=1071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}