{"id":9505,"date":"2020-09-10T19:04:28","date_gmt":"2020-09-10T19:04:28","guid":{"rendered":"https:\/\/www.kindsonthegenius.com\/?page_id=9505"},"modified":"2020-09-10T19:04:28","modified_gmt":"2020-09-10T19:04:28","slug":"hashing-and-hash-tables","status":"publish","type":"page","link":"https:\/\/kindsonthegenius.com\/cybersecurity\/hashing-and-hash-tables\/","title":{"rendered":"Hashing and Hash Tables"},"content":{"rendered":"<p><!-- ktg-pillar-fix --><br \/>\n<!-- ktg-updated-banner --><\/p>\n<div class=\"ktg-updated-banner\" style=\"margin:1em 0;padding:0.75em 1em;background:#eff6ff;border-left:4px solid #3b82f6;border-radius:4px;\">\n<p><strong>Updated July 2026:<\/strong> Hashing and Hash Tables \u2014 refreshed for clarity, runnable examples, and current best practices.<\/p>\n<\/div>\n<div class=\"ktg-pillar-fix\">\n<p>A <strong>hash table<\/strong> stores key\u2013value pairs for near-constant-time lookups using a <strong>hash function<\/strong> that maps keys to array indices. These tutorials cover how hashing works, how collisions are handled, and where hash tables are used in real systems.<\/p>\n<h2>What you&#8217;ll learn in Hashing and Hash Tables<\/h2>\n<ul>\n<li>How hash functions map keys to buckets and what makes a good hash function<\/li>\n<li>Collision resolution: separate chaining vs. open addressing (linear\/quadratic probing)<\/li>\n<li>Load factor, resizing, and amortized performance analysis<\/li>\n<li>Practical uses: caches, symbol tables, sets, and de-duplication<\/li>\n<\/ul>\n<h2>Related tutorials &amp; topics<\/h2>\n<ul>\n<li><a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/blog\/\">Data Structures &#038; Algorithms (blog)<\/a><\/li>\n<li><a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/machine-learning-101-complete-course\/\">Machine Learning 101<\/a><\/li>\n<li><a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/flow-network-tutorials-with-ford-fulkerson-algorithm\/\">Flow Networks &#038; Ford-Fulkerson<\/a><\/li>\n<\/ul>\n<p style=\"margin:1.25em 0;padding:1em;background:#eff6ff;border-left:4px solid #3b82f6;\">Explore every tutorial and course in the <a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/content-directory\/\">Content Directory<\/a>, or read more on <a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/blog\/\">the Genius Blog<\/a>.<\/p>\n<p class=\"ktg-page-footer\" style=\"margin-top:1.5em;\"><a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/content-directory\/\">Content Directory<\/a> \u00b7 <a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/about-me\/\">About Kindson<\/a> \u00b7 <a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/coaching\/\">Coaching<\/a> \u00b7 <a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/contact-us\/\">Contact<\/a> \u00b7 <a href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/faqs\/\">FAQs<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Updated July 2026: Hashing and Hash Tables \u2014 refreshed for clarity, runnable examples, and current best practices. A hash table stores key\u2013value pairs for near-constant-time lookups using a hash function that maps keys to array indices. These tutorials cover how hashing works, how collisions are handled, and where hash tables are used in real systems. &#8230; <a title=\"Hashing and Hash Tables\" class=\"read-more\" href=\"https:\/\/kindsonthegenius.com\/cybersecurity\/hashing-and-hash-tables\/\" aria-label=\"Read more about Hashing and Hash Tables\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":8938,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"class_list":["post-9505","page","type-page","status-publish","has-post-thumbnail"],"_links":{"self":[{"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/pages\/9505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/comments?post=9505"}],"version-history":[{"count":0,"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/pages\/9505\/revisions"}],"wp:attachment":[{"href":"https:\/\/kindsonthegenius.com\/cybersecurity\/wp-json\/wp\/v2\/media?parent=9505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}