The latest articles on DEV Community by Aravind R (@aravindr7991). https://dev.to/aravindr7991 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F1403056%2F14a595be-805e-4293-99bf-3aaad0525669.png https://dev.to/aravindr7991 en Aravind R Tue, 02 Apr 2024 16:21:53 +0000 https://dev.to/aravindr7991/til1-translate-strmaketrans-5fle https://dev.to/aravindr7991/til1-translate-strmaketrans-5fle <h2> translate() </h2> <p><strong>translate()</strong> is a string method used to obtain a new string where specified characters are replaced by others based on a mapping table or dictionary.</p> <ul> <li><p>For mapping, the dictionary can be user defined or a mapping table can be made using <strong>str.maketrans()</strong> method.</p></li> <li><p>While defining a dictionary to use for mapping, the keys and values should be ascii values of the characters to be replaced.<br> Eg: To replace "a" with "z" the dictionary should be {97:122}</p></li> <li><p>To remove a character, assign its value as **None **in the dictionary.<br> </p></li> </ul> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>Syntax: -stringName-.translate(-dictionary-) </code></pre> </div> <h2> str.maketrans() </h2> <p><strong>str.maketrans()</strong> creates a mapping table that can be used in translate(). It takes 2 strings as arguments. string 1 contains the characters to be replaced and string 2 contains the characters that replace them.</p> <ul> <li><p>The position of characters in both strings should be in the order of replacement. 1st character of string 1 will be replaced by 1st character in string 2 and so on.</p></li> <li><p>The mapping table is composed of ascii numbers of individual characters as key-value pairs. It cannot map whole words for replacement.</p></li> <li><p>A 3rd string can be given as an optional argument. Characters in this string will be mapped to <strong>None</strong>, and will be removed from the returned string.<br> </p></li> </ul> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>Syntax: str.maketrans(-string1-, -string2-, -stringOptional-) </code></pre> </div> <p>That's about it. Any additions or corrections would be appreciated.<br> Happy Learning :-)</p> python todayilearned