javascript1min read In JavaScript, we can use the Math.abs( ) method to get the absolute value of a given number. Note: The absolute value of number is never negative. Examples and Usage const num = -1233 console.log(Math.abs(num)) // 1233 // The absolute value of -1233 is 1233...
A common reason to use addition or subtraction in JavaScript would be to scroll to an id minus the height in pixels of a fixed navigation bar. functionscrollToId(){constnavHeight=60;window.scrollTo(0,window.pageYOffset-navHeight);}window.addEventListener('hashchange',scrollToId); Copy In th...
The Array.from() method in JavaScript creates a new, shallow-copied instance of Array from an array-like or iterable object. You can use this method to convert array-like objects (objects with a length property and indexed items) as well as iterable objects (objects such as Map and Set)...
You can refer to the Cheatsheet () for guidelines, but first, you need to add the input and output. If you can’t code in JavaScript, feel free to use our Script Helper ( ) and have a look at theseexamples. Share The SHARE tab is where you can find the link and codes to embed ...
Here’s a simple example demonstrating how to useparseFloat(): constscientificNotationString='6.022e23';constparsedNumber=parseFloat(scientificNotationString);console.log(parsedNumber); Output: In this example, theparseFloat()function parses the string'6.022e23'and converts it into the JavaScript number...
first: nice nicesecond: JavaScript JavaScriptthird: secrets secrets If the function is called with more arguments than were declared in the function signature, this is the way to access them. However, the modern way is to use the rest parameter (…param) instead of the arguments object. ...
numbers.sort();// [1, 2, 3, 4, 5]Code language:JavaScript(javascript) To sort numbers in descending order, we can use a compare function as a parameter toArray.sort(). The compare function should return a negative value if the first argument is less than the second argument, a positi...
Find out how to fix decimals arithmetic in JavaScriptIf you try to do the sum of two decimal numbers in JavaScript you might have a surprise.0.1 + 0.1 is, as you expect, 0.2But sometimes you have some unexpected result.Like for 0.1 + 0.2.The result is not 0.3 as you’d expect, ...
delete Math.PI; // returns false console.log(Math.PI); // returns 3.141592653589793 Copydelete has no effect on an object property that is set as non-configurable. It will always return false.In strict mode, this will raise a SyntaxError.Here is an example of attempting to use delete ...
See how it returns NaN in the first example, which is the correct behavior: it’s not a number.Use Math.floor()Similar to the + unary operator, but returns the integer part, is to use Math.floor():Math.floor('10,000') //NaN ✅ Math.floor('10.000') //10 ✅ Math.floor('...