{"id":558,"date":"2014-10-09T11:59:00","date_gmt":"2014-10-09T11:59:00","guid":{"rendered":"https:\/\/blogs.technet.microsoft.com\/heyscriptingguy\/2014\/10\/09\/powertip-empty-hash-table-with-powershell\/"},"modified":"2014-10-09T11:59:00","modified_gmt":"2014-10-09T11:59:00","slug":"powertip-empty-hash-table-with-powershell","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/scripting\/powertip-empty-hash-table-with-powershell\/","title":{"rendered":"PowerTip: Empty Hash Table with PowerShell"},"content":{"rendered":"<p><b style=\"font-size:12px\">Summary<\/b><span style=\"font-size:12px\">: Learn how to easily empty a hash table by using Windows PowerShell.<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/devblogs.microsoft.com\/wp-content\/uploads\/sites\/29\/2019\/02\/q-for-powertip.jpg\" alt=\"Hey, Scripting Guy! Question\" \/>&nbsp;I want to write new values to a hash table, and I want to ensure that it contains none of the original keys or values. <br \/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;How can I accomplish this task without deleting and re-creating the hash table?<\/p>\n<p style=\"margin-left:30px\"><img decoding=\"async\" src=\"https:\/\/devblogs.microsoft.com\/wp-content\/uploads\/sites\/29\/2019\/02\/a-for-powertip.jpg\" alt=\"Hey, Scripting Guy! Answer\" \/>&nbsp;Use the&nbsp;<b>Clear<\/b>&nbsp;method from the hash table object, for example:<\/p>\n<p style=\"margin-left:120px\">PS C:\\&gt; $a = @{a=1;b=2;c=3}<span style=\"font-size:12px\">&nbsp;<\/span><\/p>\n<p style=\"margin-left:120px\">PS C:\\&gt; $a.Clear()<\/p>\n<p style=\"margin-left:30px\"><img decoding=\"async\" src=\"https:\/\/devblogs.microsoft.com\/wp-content\/uploads\/sites\/29\/2019\/02\/7610.Dr.ScriptoForTips.jpg\" alt=\" \" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summary: Learn how to easily empty a hash table by using Windows PowerShell. &nbsp;I want to write new values to a hash table, and I want to ensure that it contains none of the original keys or values. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;How can I accomplish this task without deleting and re-creating the hash [&hellip;]<\/p>\n","protected":false},"author":596,"featured_media":87096,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[356,3,45],"class_list":["post-558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scripting","tag-powertip","tag-scripting-guy","tag-windows-powershell"],"acf":[],"blog_post_summary":"<p>Summary: Learn how to easily empty a hash table by using Windows PowerShell. &nbsp;I want to write new values to a hash table, and I want to ensure that it contains none of the original keys or values. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;How can I accomplish this task without deleting and re-creating the hash [&hellip;]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/posts\/558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/users\/596"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/comments?post=558"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/posts\/558\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/media\/87096"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/media?parent=558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/categories?post=558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/scripting\/wp-json\/wp\/v2\/tags?post=558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}