how to use the tosafeinteger function from lodash in javascript

To use the toSafeInteger function from lodash in javascript, you need to follow these steps:

Include lodash in your project. You can either download it and include it in your HTML file or install it using npm and then import it into your javascript file.


index.tsx
//method 1
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.11/lodash.min.js"></script>

//method 2
npm install lodash
import _ from 'lodash';
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Now you can use the toSafeInteger function in your code. This function converts a value to a safe integer, which means that it will be converted to an integer within the range of -2^53 + 1 and 2^53 - 1.


index.tsx
// Convert string to safe integer
const value = _.toSafeInteger('123.45');

console.log(value); // Output: 123

// Convert float to safe integer
const value2 = _.toSafeInteger(123.45);

console.log(value2); // Output: 123

// Convert a value outside of the safe range to maximum safe integer
const value3 = _.toSafeInteger(Number.MAX_VALUE);

console.log(value3); // Output: 9007199254740991

// Validate and convert input value to safe integer
const input = '123abc';
let value4;

if (_.isFinite(input)) {
  value4 = _.toSafeInteger(input);
} else {
  console.log('Invalid input value');
}
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You can also use the toSafeInteger function for type conversion and validation. For example, if you want to convert a user input value to an integer, you can first validate it using the isFinite function and then convert it to a safe integer using the toSafeInteger function.


index.tsx
// Validate and convert input value to safe integer
const input = '123abc';
let value4;

if (_.isFinite(input)) {
  value4 = _.toSafeInteger(input);
} else {
  console.log('Invalid input value');
}
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I hope this helps!

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