{"id":1767,"date":"2019-09-17T02:58:46","date_gmt":"2019-09-17T02:58:46","guid":{"rendered":"http:\/\/upmostlymulti.onpressidium.com\/?p=1767"},"modified":"2022-10-28T11:09:13","modified_gmt":"2022-10-28T16:09:13","slug":"how-to-remove-a-character-from-a-string-in-javascript","status":"publish","type":"post","link":"http:\/\/upmostly.com\/tutorials\/how-to-remove-a-character-from-a-string-in-javascript","title":{"rendered":"How to Remove a Character from a String in JavaScript"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1160\" height=\"600\" src=\"http:\/\/upmostly.com\/wp-content\/uploads\/javascript-remove-character-string.jpg\" alt=\"A trash can with the word 'World' inside of it, illustrating how to remove a character from a string in JavaScript.\" class=\"wp-image-1799\" srcset=\"https:\/\/upmostly.com\/wp-content\/uploads\/javascript-remove-character-string.jpg 1160w, https:\/\/upmostly.com\/wp-content\/uploads\/javascript-remove-character-string-300x155.jpg 300w, https:\/\/upmostly.com\/wp-content\/uploads\/javascript-remove-character-string-768x397.jpg 768w, https:\/\/upmostly.com\/wp-content\/uploads\/javascript-remove-character-string-1024x530.jpg 1024w\" sizes=\"auto, (max-width: 1160px) 100vw, 1160px\" \/><\/figure>\n\n\n\n<p>A common form of string manipulation in JavaScript is to remove a character from a string. Let&#8217;s explore all of the ways we can do this in JavaScript.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is Replace in JavaScript?<\/h2>\n\n\n\n<p>You&#8217;re probably thinking that there is a String function called remove, aren&#8217;t you? Unfortunately there isn&#8217;t a remove String method in JavaScript, however, there is the <strong><em>replace<\/em><\/strong> method.<\/p>\n\n\n\n<p>The replace method in JavaScript takes two arguments:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>The characters to be replaced.<\/li><li>The characters to replace it with.<\/li><\/ul>\n\n\n\n<p>In fact, the replace method is very powerful, as it allows us to switch a string or character with another string or character. Let&#8217;s take a look at a simple example.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Using Replace to Remove a Character from a String in JavaScript<\/h2>\n\n\n\n<div class=\"wp-block-cgb-block-codeplus\"><div class=\"upmostly-block better-code-block\"><div class=\"dark\"><pre class=\"language-javascript\"><code class=\"language-javascript\"><div><span class=\"token keyword\">const<\/span> greeting <span class=\"token operator\">=<\/span> <span class=\"token string\">\"Hello my name is James\"<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> omittedName <span class=\"token operator\">=<\/span> greeting<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'James'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">''<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/div><\/code><\/pre><\/div><\/div><\/div>\n\n\n\n<p>The example above declares a new constant, named <em>greeting<\/em>, which is of type string.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Learn how <a rel=\"noreferrer noopener\" aria-label=\"to extract strings from other strings using the Substring method (opens in a new tab)\" href=\"http:\/\/upmostly.com\/tutorials\/javascript-substring-extracting-strings-with-examples\" target=\"_blank\">to extract strings from other strings using the <\/a><a href=\"http:\/\/upmostly.com\/tutorials\/javascript-substring-extracting-strings-with-examples\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"to extract strings from other strings using the Substring method (opens in a new tab)\">s<\/a><a rel=\"noreferrer noopener\" aria-label=\"to extract strings from other strings using the Substring method (opens in a new tab)\" href=\"http:\/\/upmostly.com\/tutorials\/javascript-substring-extracting-strings-with-examples\" target=\"_blank\">ubstring method<\/a>.<\/p><\/blockquote>\n\n\n\n<p>We then run the <em><strong>replace<\/strong><\/em> method on that string, which replaces the characters &#8216;James&#8217; inside of the <em>greeting<\/em> constant with a blank space.<\/p>\n\n\n\n<p>Simple! We&#8217;re using JavaScript to remove the &#8216;James&#8217; character from a string.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Example: Remove Multiple Characters from a String in JavaScript<\/h2>\n\n\n\n<p>What if you had a scenario where you wanted to replace multiple instances of the name character from a string? The code example above would not replace all of the characters: &#8216;James&#8217; from a string, only the first set of characters that match &#8216;James&#8217;.<\/p>\n\n\n\n<p>Let&#8217;s explore how we can remove multiple characters from a string in JavaScript using a regular expression that uses the global modifier to target all occurances of that string.<\/p>\n\n\n\n<div class=\"wp-block-cgb-block-codeplus\"><div class=\"upmostly-block better-code-block\"><div class=\"dark\"><pre class=\"language-javascript\"><code class=\"language-javascript\"><div><span class=\"token keyword\">const<\/span> description <span class=\"token operator\">=<\/span> <span class=\"token string\">\"Upmostly teaches React and JavaScript tutorials. JavaScript is a scripting language.\"<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> newDescription <span class=\"token operator\">=<\/span> greeting<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token regex\">\/JavaScript\/g<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'...'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/div><\/code><\/pre><\/div><\/div><\/div>\n\n\n\n<p>The example code above creates a new constant variable named <em>description<\/em> (which is a description of this very site!). We then perform the replace method on it, but this time, use the global modifier in a regular expression.<\/p>\n\n\n\n<p>This modifer, <strong>\/g<\/strong> targets all strings inside of the description string that match the first argument.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">When to Use Replace in JavaScript? <\/h2>\n\n\n\n<p>The replace method is another way to manipulate strings in JavaScript. There could be a scenario whereby you have connected to a database, or are querying an API to return external data that someone else designed and architected.<\/p>\n\n\n\n<p>Therefore, that data is likely going to be formatted in a particular way and may not be in the format that you want or need. That&#8217;s when you&#8217;ll need to perform some string manipulation on it.<\/p>\n\n\n\n<p>To Perform that string manipulation you will have to use the powerful and flexible <strong><em>replace<\/em><\/strong> method. If you want to learn further <a href=\"http:\/\/upmostly.com\/tutorials\/javascript-substring-extracting-strings-with-examples\" target=\"_blank\" data-type=\"URL\" data-id=\"http:\/\/upmostly.com\/tutorials\/javascript-substring-extracting-strings-with-examples\" rel=\"noreferrer noopener\">string manipulation using the <strong><em>substring<\/em><\/strong> method check out this guide<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A common form of string manipulation in JavaScript is to remove a character from a string. Let&#8217;s explore all of the ways we can do this in JavaScript.<\/p>\n","protected":false},"author":8,"featured_media":1799,"comment_status":"open","ping_status":"open","sticky":false,"template":"post-tutorial-new.php","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[33,29],"class_list":["post-1767","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-beginner-react-tutorials","tag-javascript"],"acf":[],"_links":{"self":[{"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/posts\/1767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/comments?post=1767"}],"version-history":[{"count":4,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/posts\/1767\/revisions"}],"predecessor-version":[{"id":13071,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/posts\/1767\/revisions\/13071"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/media\/1799"}],"wp:attachment":[{"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/media?parent=1767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/categories?post=1767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/upmostly.com\/wp-json\/wp\/v2\/tags?post=1767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}