How to use the overEvery function from lodash

Find comprehensive JavaScript lodash.overEvery code examples handpicked from public code repositorys.

lodash.overEvery is a function in the Lodash library that returns a new function that returns true if all of its input functions return true for a given set of arguments.

lodash-contrib.commonjs.js

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module.exports.omitWhen            = _.omitWhen;
module.exports.once                = _.once;
module.exports.orderBy             = _.orderBy;
module.exports.over                = _.over;
module.exports.overArgs            = _.overArgs;
module.exports.overEvery           = _.overEvery;
module.exports.overSome            = _.overSome;
module.exports.pad                 = _.pad;
module.exports.padEnd              = _.padEnd;
module.exports.padStart            = _.padStart;

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+ 92 other calls in file

lodash.js

GitHub: mdmarufsarker/lodash

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console.log(nthArg('a', 'b', 'c', 'd')); // => 'b'


const over = _.over([Math.max, Math.min]);
console.log(over(1, 2, 3, 4)); // => [4, 1]


const overEvery = _.overEvery([Boolean, isFinite]);
console.log(overEvery('1')); // => true


const overSome = _.overSome([Boolean, isFinite]);
console.log(overSome('1')); // => true

+ 15 other calls in file

How does lodash.overEvery work?

lodash.overEvery is a function in the Lodash library that returns a new function that returns true if all of its input functions return true for a given set of arguments. The function takes two or more arguments: a set of predicate functions to be evaluated, and an optional context object to be used as this when calling the predicate functions. When the new function created by lodash.overEvery is called, it evaluates each of the input predicate functions using the arguments passed to the new function. If all of the predicate functions return true, the new function returns true. If any of the predicate functions return false, the new function returns false. For example, the following code uses lodash.overEvery to create a new function that checks if a given number is both positive and even: javascript Copy code {{{{{{{ const _ = require('lodash'); const isPositive = (n) => n > 0; const isEven = (n) => n % 2 === 0; const isPositiveAndEven = _.overEvery(isPositive, isEven); console.log(isPositiveAndEven(4)); // Output: true console.log(isPositiveAndEven(-2)); // Output: false console.log(isPositiveAndEven(3)); // Output: false In this example, we use lodash.overEvery to create a new function isPositiveAndEven that checks if a given number is both positive and even. When we call isPositiveAndEven(4), the new function first evaluates the input predicate functions isPositive and isEven with the argument 4. Both predicate functions return true, so isPositiveAndEven(4) returns true. Similarly, when we call isPositiveAndEven(-2), the new function evaluates the predicate functions with the argument -2. Since isPositive(-2) returns false, isPositiveAndEven(-2) returns false. Overall, lodash.overEvery is a useful utility function for creating a new function that combines multiple predicate functions and checks whether they all evaluate to true for a given set of arguments.

Ai Example

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const _ = require("lodash");

const hasUsername = (user) => !!user.username;
const hasEmail = (user) => !!user.email;
const hasPassword = (user) => !!user.password;

const isValidUser = _.overEvery(hasUsername, hasEmail, hasPassword);

const user1 = {
  username: "johndoe",
  email: "john@example.com",
  password: "password",
};
console.log(isValidUser(user1)); // Output: true

const user2 = { username: "janedoe", email: "jane@example.com" };
console.log(isValidUser(user2)); // Output: false

In this example, we use lodash.overEvery to create a new function isValidUser that checks whether a given user object has a username, email, and password property. When we call isValidUser(user1) with a user object that has all three properties, the function evaluates each of the input predicate functions with the user1 object. Since all three properties are present, all of the predicate functions return true, and isValidUser(user1) returns true. Similarly, when we call isValidUser(user2) with a user object that is missing the password property, the function evaluates each of the input predicate functions with the user2 object. Since hasPassword(user2) returns false, isValidUser(user2) returns false. Overall, lodash.overEvery is a useful utility function for creating a new function that combines multiple predicate functions and checks whether they all evaluate to true for a given set of arguments.

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