{"id":26524,"date":"2022-12-18T08:24:26","date_gmt":"2022-12-18T02:54:26","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/"},"modified":"2022-12-18T08:24:26","modified_gmt":"2022-12-18T02:54:26","slug":"solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/","title":{"rendered":"[Solved] Check if condition is true for a longer time period – not only at a specific time"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

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<\/div>\n
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If you reword your question to: <\/p>\n

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detect how long a variable has been set <\/p>\n<\/blockquote>\n

then you can use new Date().getTime()<\/code> to get the number of ticks when the value changes and then the same when it changes back (other functions on Date() are available, eg get number of seconds or millseconds).<\/p>\n

eg:<\/p>\n

var t = null;\nfunction start() { t = new Date().getTime(); }\nfunction stop() { t = (new Date().getTime()) - t; }\nstart();\nsetTimeout(function() { stop(); }, 1250);\n<\/code><\/pre>\n
you set\/reset\/check t<\/code> when your condition changes.<\/p>\n
You can combine the two start\/stop above by checking for null<\/code> to see if it has started, eg:<\/p>\n
var t = null;\nfunction action() { \n    if (t == null) \n    { \n        t = new Date().getTime();\n    } else {\n        t = (new Date().getTime()) - t;\n        \/\/ do something\n        onValueChange(t); \n    }\n}\naction();\nsetTimeout(function() { action(); }, 1250);\n<\/code><\/pre>\n
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As an example, in javascript\/jquery, using an HTML button, you can record the mousedown<\/code> and compare when you mouseup<\/code> to see how long a button has been pressed, eg:<\/p>\n<\/p>\n
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var t = null;\r\n$(\"#btn\")\r\n  .on(\"mousedown\", function() {\r\n    t = new Date().getTime(); \/\/ current ticks\r\n  }).on(\"mouseup\", function() {\r\n    t = new Date().getTime() - t; \/\/ delta ticks (could use seconds or milliseconds)\r\n\r\n    \/\/ Do something with t\r\n    $(\"#result\").text(\"You pressed for \" + t + \" ticks.\");\r\n  });<\/code><\/pre>\n
<script src=\"https:\/\/ajax.googleapis.com\/ajax\/libs\/jquery\/2.1.1\/jquery.min.js\"><\/script>\r\n<button id='btn'>press me<\/button>\r\n<div id='result'><\/div><\/code><\/pre>\n<\/div>\n<\/div><\/div>\n
<\/div>\n<\/div>\n
            1<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved Check if condition is true for a longer time period – not only at a specific time <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] If you reword your question to: detect how long a variable has been set then you can use new Date().getTime() to get the number of ticks when the value changes and then the same when it changes back (other functions on Date() are available, eg get number of seconds or millseconds). eg: var t … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[388],"class_list":["post-26524","post","type-post","status-publish","format-standard","hentry","category-solved","tag-jquery"],"yoast_head":"\n[Solved] Check if condition is true for a longer time period - not only at a specific time - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Check if condition is true for a longer time period - not only at a specific time - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] If you reword your question to: detect how long a variable has been set then you can use new Date().getTime() to get the number of ticks when the value changes and then the same when it changes back (other functions on Date() are available, eg get number of seconds or millseconds). eg: var t ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-18T02:54:26+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] Check if condition is true for a longer time period – not only at a specific time\",\"datePublished\":\"2022-12-18T02:54:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/\"},\"wordCount\":142,\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"keywords\":[\"jquery\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/\",\"url\":\"https:\/\/jassweb.com\/solved\/solved-check-if-condition-is-true-for-a-longer-time-period-not-only-at-a-specific-time\/\",\"name\":\"[Solved] Check if condition is true for a longer time period - 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