{"id":736,"date":"2004-07-20T12:26:54","date_gmt":"2004-07-20T12:26:54","guid":{"rendered":"http:\/\/beta.robertprice.co.uk\/robblog\/2004\/07\/comparing_email_addresses_in_javascript-shtml\/"},"modified":"2004-07-20T12:26:54","modified_gmt":"2004-07-20T12:26:54","slug":"comparing_email_addresses_in_javascript-shtml","status":"publish","type":"post","link":"https:\/\/www.robertprice.co.uk\/robblog\/comparing_email_addresses_in_javascript-shtml\/","title":{"rendered":"Comparing Email Addresses In JavaScript"},"content":{"rendered":"

\nI needed to write a quick JavaScript that could check if two email addresses were the same or not today. As it’s so simple, I thought I’d share it.\n<\/p>\n

\nFirstly we put the following JavaScript into a script<\/code> tag.\n<\/p>\n

function compareEmails(myForm) {\n  if (myForm.email.value != myForm.email2.value) {\n    alert(\"Your email addresses don't match. Please double check\");\n    return false;\n  } else {\n    return true;\n  }\n}\n<\/pre>\n
\nIt takes a form, and compares the values of the fields called email<\/code> and email2<\/code>. If they are the same it returns true<\/code> which lets the form submit normally.\n<\/p>\n
\nHowever, if email<\/code> and email2<\/code> are different it brings up an alert box telling our submitter the values are different, and returns false. Returning false means the script won’t submit to the script specified in the action<\/code> parameter so the user has to confirm their email address again.\n<\/p>\n
\nThe following HTML<\/acronym> code gives an example of the scripts use.\n<\/p>\n
\n<form action=\"dosomething.pl\" onSubmit=\"compareEmails(this);\">\nEmail :<input type=\"text\" name=\"email\" \/> <br \/>\nVerify Email: <input type=\"text\" name=\"email2\" \/> <br \/>\n<input type=\"submit\" \/>\n<\/form>\n<\/pre>\n
\nOf course the code can be used to compare any fields and not just email addresses. All you need to do is to change the field names in the JavaScript.\n<\/p>\n
\nEnjoy!<\/p>\n","protected":false},"excerpt":{"rendered":"
I needed to write a quick JavaScript that could check if two email addresses were the same or not today. As it’s so simple, I thought I’d share it. Firstly we put the following JavaScript into a script tag. function compareEmails(myForm) { if (myForm.email.value != myForm.email2.value) { alert(“Your email addresses don’t match. Please double check”); … Continue reading “Comparing Email Addresses In JavaScript”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2],"tags":[31],"class_list":["post-736","post","type-post","status-publish","format-standard","hentry","category-dev","tag-javascript"],"yoast_head":"\nComparing Email Addresses In JavaScript - Robert Price<\/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:\/\/www.robertprice.co.uk\/robblog\/comparing_email_addresses_in_javascript-shtml\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comparing Email Addresses In JavaScript - Robert Price\" \/>\n<meta property=\"og:description\" content=\"I needed to write a quick JavaScript that could check if two email addresses were the same or not today. As it’s so simple, I thought I’d share it. Firstly we put the following JavaScript into a script tag. function compareEmails(myForm) { if (myForm.email.value != myForm.email2.value) { alert("Your email addresses don't match. Please double check"); … Continue reading "Comparing Email Addresses In JavaScript"\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.robertprice.co.uk\/robblog\/comparing_email_addresses_in_javascript-shtml\/\" \/>\n<meta property=\"og:site_name\" content=\"Robert Price\" \/>\n<meta property=\"article:published_time\" content=\"2004-07-20T12:26:54+00:00\" \/>\n<meta name=\"author\" content=\"rob\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rob\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated 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:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/\"},\"author\":{\"name\":\"rob\",\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/#\\\/schema\\\/person\\\/fac6d5b076e0e14e1fb13e15b542a6c5\"},\"headline\":\"Comparing Email Addresses In JavaScript\",\"datePublished\":\"2004-07-20T12:26:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/\"},\"wordCount\":159,\"keywords\":[\"JavaScript\"],\"articleSection\":[\"Dev\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/\",\"url\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/\",\"name\":\"Comparing Email Addresses In JavaScript - Robert Price\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/#website\"},\"datePublished\":\"2004-07-20T12:26:54+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/#\\\/schema\\\/person\\\/fac6d5b076e0e14e1fb13e15b542a6c5\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/comparing_email_addresses_in_javascript-shtml\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Comparing Email Addresses In JavaScript\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/#website\",\"url\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/\",\"name\":\"Robert Price\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.robertprice.co.uk\\\/robblog\\\/#\\\/schema\\\/person\\\/fac6d5b076e0e14e1fb13e15b542a6c5\",\"name\":\"rob\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6f0eb511179100a4e968abc70403e33686e6ab3e992e392bedd2ccac01da666c?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6f0eb511179100a4e968abc70403e33686e6ab3e992e392bedd2ccac01da666c?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6f0eb511179100a4e968abc70403e33686e6ab3e992e392bedd2ccac01da666c?s=96&d=mm&r=g\",\"caption\":\"rob\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Comparing Email Addresses In JavaScript - Robert Price","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.robertprice.co.uk\/robblog\/comparing_email_addresses_in_javascript-shtml\/","og_locale":"en_GB","og_type":"article","og_title":"Comparing Email Addresses In JavaScript - Robert Price","og_description":"I needed to write a quick JavaScript that could check if two email addresses were the same or not today. 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