Using Math.floor() is one way of doing this.

More information: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor

Answer from phoebus on Stack Overflow
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TutorialsPoint
tutorialspoint.com โ€บ how-can-i-round-down-a-number-in-javascript
How can I round down a number in JavaScript?
This tutorial teaches us to round ... equal to or less than the current float numberโ€. For example, if we round down the number 9.99, we get 9 as an output, and in the same way, for 8.01 we get 8 as an output....
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W3Schools
w3schools.com โ€บ jsref โ€บ jsref_floor.asp
JavaScript Math floor() Method
The Math.floor() method rounds a number DOWN to the nearest integer. The Math.abs() Method The Math.ceil() Method The Math.floor() Method The Math.round() Method The Math.fround() Method The Math.f16round() Method The Math.trunc() Method ...
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MDN Web Docs
developer.mozilla.org โ€บ en-US โ€บ docs โ€บ Web โ€บ JavaScript โ€บ Reference โ€บ Global_Objects โ€บ Math โ€บ round
Math.round() - JavaScript | MDN
If the fractional portion of the argument is greater than 0.5, the argument is rounded to the integer with the next higher absolute value. If it is less than 0.5, the argument is rounded to the integer with the lower absolute value.
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W3Schools
w3schools.com โ€บ jsref โ€บ jsref_round.asp
JavaScript Math round() Method
2.49 will be rounded down (2), and 2.5 will be rounded up (3). The Math.abs() Method The Math.ceil() Method The Math.floor() Method The Math.round() Method The Math.fround() Method The Math.f16round() Method The Math.trunc() Method ...
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MDN Web Docs
developer.mozilla.org โ€บ en-US โ€บ docs โ€บ Web โ€บ JavaScript โ€บ Reference โ€บ Global_Objects โ€บ Math โ€บ floor
Math.floor() - JavaScript | MDN
*/ function decimalAdjust(type, value, exp) { type = String(type); if (!["round", "floor", "ceil"].includes(type)) { throw new TypeError( "The type of decimal adjustment must be one of 'round', 'floor', or 'ceil'.", ); } exp = Number(exp); value = Number(value); if (exp % 1 !== 0 || Number.isNaN(value)) { return NaN; } else if (exp === 0) { return Math[type](value); } const [magnitude, exponent = 0] = value.toString().split("e"); const adjustedValue = Math[type](`${magnitude}e${exponent - exp}`); // Shift back const [newMagnitude, newExponent = 0] = adjustedValue.toString().split("e"); return
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pawelgrzybek
pawelgrzybek.com โ€บ rounding-and-truncating-numbers-in-javascript
Rounding and truncating numbers in JavaScript | pawelgrzybek.com
Truncating approximates without rounding. In other words, it โ€œroundsโ€ towards zero. Rounding 3.14159 โ‰ˆ 3.1416 Truncating 3.14159 โ‰ˆ 3.1415 ยท Hopefully you get the difference.
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Ihechikara
ihechikara.com โ€บ posts โ€บ how-to-round-a-number-in-js
How To Round Numbers in JavaScript โ€“ Explained With Code Examples
So the number will be rounded down whether the digit after the decimal point is greater than, equal to, or less than 5. In the example above, 2.5 was rounded down to 2 using the Math.floor() method.
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Code Boxx
code-boxx.com โ€บ home โ€บ round off in javascript (up, down, to decimal places)
Round Off In Javascript (Up, Down, To Decimal Places)
August 7, 2024 - To round off a number in Javascript โ€“ Math.round(12.34); Round up to the nearest whole number โ€“ Math.ceil(1.1); Round down to the nearest whole number โ€“ Math.floor(2.3); Drop the decimal places without rounding off โ€“ Math.trunc(3.45); ...
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Kodeclik
kodeclik.com โ€บ javascript-round-down
How to round down a number in Javascript
October 24, 2025 - To round down in Javascript, use Math.floor() to find the largest integer less than or equal to a given number.
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SheCodes
shecodes.io โ€บ athena โ€บ 3104-javascript-math-round-down-function-explained
[JavaScript] - JavaScript Math Round Down Function | SheCodes
Discover how to use `Math.floor()` function in JavaScript to return the largest integer less than or equal to a given number.
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Vultr Docs
docs.vultr.com โ€บ javascript โ€บ standard-library โ€บ Math โ€บ floor
JavaScript Math floor() - Round Down Value | Vultr Docs
November 29, 2024 - In this example, even though stringValue is a textual representation, JavaScript coerces it to 7.9 as a number, and Math.floor() rounds it down to 7.
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SitePoint
sitepoint.com โ€บ blog โ€บ javascript โ€บ a guide to rounding numbers in javascript
A Guide to Rounding Numbers in JavaScript โ€” SitePoint
November 13, 2024 - This is done by dividing the number ... playlist): const songsPerPlaylist = 10; const numberOfSongs = 82; const numberOfPlaylists = numberOfSongs/songsPerPlaylist; << 8.2 ยท Using Math.round would round this down to 8 โ€ฆ...
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MSR
rajamsr.com โ€บ home โ€บ javascript floor(): round down numbers like a pro
JavaScript Floor(): Round Down Numbers Like a Pro | MSR - Web Dev Simplified
December 9, 2023 - If you are a web developer, you may have encountered the JavaScript floor() function. This function is used to round down a number to the nearest integer. For example, floor(3.14) returns 3, and floor(-1.5) returns -2. But why do we need this ...
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GoLinuxCloud
golinuxcloud.com โ€บ home โ€บ javascript โ€บ how to round down a number javascript [solved]
How to round down a number JavaScript [SOLVED] | GoLinuxCloud
November 11, 2022 - Different method to round down in JavaScript. Method-1: Using the round method. Method-2: Using the floor method. Method-3: Round down using the trunc method
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Itsourcecode
itsourcecode.com โ€บ home โ€บ how to math round down in javascript? round down a number
How to Math round down in JavaScript? Round Down a Number
September 7, 2023 - ... Math.trunc() is a function ... 7.6 and you want to round it down to the nearest integer, you can use Math.trunc(7.6) which would return 7....
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FoxLearn
foxlearn.com โ€บ javascript โ€บ how-to-round-down-in-javascript-6072.html
How to round down in Javascript
In the example above, the Math.floor() method is used to round down the number 4.7 to 4. The result is then stored in the variable roundedNumber and printed to the console.
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Markqdavenport
markqdavenport.com โ€บ round-down-in-javascript-with-math-floor
Round down in Javascript with Math.floor โ€“ Mark Q Davenport
With negative numbers the number is brought to a lower value, so -3.21 would be rounded down to -4.
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TestMu AI Community
community.testmuai.com โ€บ ask a question
How to Round Down a Number in JavaScript? - TestMu AI Community
September 16, 2024 - How can I javascript round down a number? I know that Math.round() rounds to the nearest decimal, but I need to round down instead. Is there a better way to do this than breaking the number apart at the decimal point andโ€ฆ