{"id":10702,"date":"2022-09-24T16:43:17","date_gmt":"2022-09-24T11:13:17","guid":{"rendered":"http:\/\/jassweb.com\/solved\/solved-javascript-regex-to-validate-the-input\/"},"modified":"2022-09-24T16:43:17","modified_gmt":"2022-09-24T11:13:17","slug":"solved-javascript-regex-to-validate-the-input","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-javascript-regex-to-validate-the-input\/","title":{"rendered":"[Solved] javascript regex to validate the input"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-51606799\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"51606799\" data-parentid=\"51606504\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You can try <code>^(?!0\\*0)(?:\\d+\\*\\d+,?)+$<\/code>.<\/p>\n<ul>\n<li><code>^<\/code> and <code>$<\/code> ensure that the entire string matches.<\/li>\n<li><code>(?!0\\*0)<\/code> is a negative look ahead to check that the string is not <code>0*0<\/code>.<\/li>\n<li><code>(?:<\/code> and <code>)<\/code> indicates that the contents are a non-capturing group<\/li>\n<li><code>\\d+<\/code> matches one or more digits (0\u20139)<\/li>\n<li><code>\\*<\/code> matches a literal <code>*<\/code> character<\/li>\n<li><code>\\d+<\/code> matches one or more digits (0\u20139)<\/li>\n<li><code>,?<\/code> optionally match a literal comma<\/li>\n<li><code>+<\/code> match one or more of the preceding pattern (<code>(?:\\d+\\*\\d+,?)<\/code>)<\/li>\n<\/ul>\n<p>Known bug: <code>50*520*4<\/code> matches.<\/p>\n<p><strong>Edit<\/strong>: Found a workaround for the bug.<\/p>\n<p><code>^(?:(?!0\\*0)\\d+\\*\\d+,)*(?:(?!0\\*0)\\d+\\*\\d+)$<\/code><\/p>\n<p><strong>Edit<\/strong>: You edited your question to make it clear that you do not want to match <code>50*5,0*0<\/code>. This can be achieved by putting the negative lookahead into the repeated match as <code>^(?:(?!0\\*0)\\d+\\*\\d+,?)+$<\/code><\/p>\n<p><strong>Edit<\/strong>: You mentioned that you don&#8217;t want to match <code>0*[anything]<\/code> and <code>[anything]*0<\/code>. Try <code>^(?:(?!0\\*)\\d+\\*(?!0,)\\d+,)*(?:(?!0\\*)\\d+\\*(?!0$)\\d+)$<\/code>.<\/p>\n<p>Play around with the latest regex with the workaround <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/regexr.com\/3t7gk\">on this RegExr demo<\/a>.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">2<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved javascript regex to validate the input <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You can try ^(?!0\\*0)(?:\\d+\\*\\d+,?)+$. ^ and $ ensure that the entire string matches. (?!0\\*0) is a negative look ahead to check that the string is not 0*0. (?: and ) indicates that the contents are a non-capturing group \\d+ matches one or more digits (0\u20139) \\* matches a literal * character \\d+ matches one &#8230; <a title=\"[Solved] javascript regex to validate the input\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-javascript-regex-to-validate-the-input\/\" aria-label=\"More on [Solved] javascript regex to validate the input\">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":[333,347],"class_list":["post-10702","post","type-post","status-publish","format-standard","hentry","category-solved","tag-javascript","tag-regex"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] javascript regex to validate the input - 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-javascript-regex-to-validate-the-input\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] javascript regex to validate the input - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You can try ^(?!0*0)(?:d+*d+,?)+$. ^ and $ ensure that the entire string matches. 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