reverse number in javascript w3schools

elements in an HTML document. This was quite simple to me, so I answered "convert the number to a string and reverse the digits". map() does not change the original array. argument is one or more JavaScript statements, eval() executes the statements. function reverseNumber(num) { return Number(String(num).split("").reverse().join("")) } console.log(reverseNumber(123)) onkeyup event, Returns the location of a key on the keyboard or device, Returns whether the length of the progress can be computable or not, Returns whether the "META" key was pressed when an event was triggered, Returns whether the "meta" key was pressed when the key event was triggered, Returns the horizontal coordinate of the mouse pointer relative to the If the argument is an expression, eval() evaluates the expression. split (" "). Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Examples might be simplified to improve reading and learning. Example W3Schools offers free online tutorials, references and exercises in all the major languages of the web. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. Calculate the number of years since January 1, 1970: getTime() returns the number of milliseconds since January 1, 1970 00:00:00. getTime() is an ECMAScript1 (ES1) feature. While using W3Schools, you agree to have read and accepted our. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. In JavaScript, NaN is short for "Not-a-Number". Example element, The volume of the media has changed (includes setting the volume to "mute"), The media has paused but is expected to resume (like when the media pauses to buffer more data), The mouse wheel rolls up or down over an element, Returns whether the "ALT" key was pressed when the mouse event was triggered, Returns whether the "ALT" key was pressed when the key event was triggered, Returns whether or not a specific event is a bubbling event, Returns which mouse button was pressed when the mouse event was triggered, Returns which mouse buttons were pressed when the mouse event was triggered, Returns whether or not an event can have its default action prevented, Returns the Unicode character code of the key that triggered the onkeypress event, Returns a list of all the touch objects whose state changed between the Use code or a function instead: The eval() method evaluates or executes an argument. A string representing a number the local format. if the value is NaN, and the type is a Number. join (""));. return reverseWordArr.join (" ");. map (word => word. A number (2 to 36) specifying the number system. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Weblet arr = [1, 2, 3]; arr.slice().reverse().forEach(x => console.log(x)) Get certifiedby completinga course today! How do you reverse each word in a given string? WebIt will go on dividing the number by the dividing numbers i.e. Conclusion We have seen the property number to be prime and implemented logic accordingly in the JavaScript. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. The steps to create the function are as follows: Check if the number is decimal. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. map (word => word. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Slice the String W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Example: Javascript