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How do I check that a number is float or integer - JavaScript?
Let’s say we have the following variables −
var value1 = 10; var value2 = 10.15;
Use the Number() condition to check that a number is float or integer −
Number(value) === value && value % 1 !== 0; }
Example
Following is the code −
function checkNumberIfFloat(value) { return Number(value) === value && value % 1 !== 0; } var value1 = 10; var value2 = 10.15; if (checkNumberIfFloat(value1) == true) console.log("The value is float=" + value1); else console.log("The value is not float=" + value1); if (checkNumberIfFloat(value2) == true) console.log("The value is float=" + value2); else console.log("The value is not float=" + value2);
To run the above program, you need to use the following command −
node fileName.js.
Here, my file name is demo218.js.
Output
The output is as follows −
PS C:\Users\Amit\JavaScript-code> node demo218.js The value is not float=10 The value is float=10.15
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