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How to use the isInteger function from lodash

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

lodash.isInteger is a method that checks whether a given value is an integer or not, returning a boolean value.

lodash-contrib.commonjs.js

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module.exports.isFloat             = _.isFloat;
module.exports.isFunction          = _.isFunction;
module.exports.isIncreasing        = _.isIncreasing;
module.exports.isIndexed           = _.isIndexed;
module.exports.isInstanceOf        = _.isInstanceOf;
module.exports.isInteger           = _.isInteger;
module.exports.isJSON              = _.isJSON;
module.exports.isLength            = _.isLength;
module.exports.isMap               = _.isMap;
module.exports.isMatch             = _.isMatch;

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+ 92 other calls in file

app.js

GitHub: pathikrit/newswall

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  wait(60).then(() => vss.sessions.restart(device.id))
},

toDb: (device) => {
  int = (x) => _.isInteger(x) && x !== -999 && x !== 999 ? x : undefined

  log.info(`Syncing deviceId=${device.id} from VSS to DB ...`)
  vss.devices.get(device.id, dayjs().subtract(config.refreshInterval).unix()).then(res => {
    const statuses = res.data.map(r => { return {

+ 10 other calls in file

How does lodash.isInteger work?

lodash.isInteger is a method that takes in a value and checks if it is an integer or not.

It returns true if the value is a finite integer, meaning it is not NaN or Infinity, and if it is of the type "number" in JavaScript, and if its value is the same when rounded down to the nearest integer. Otherwise, it returns false.

lodash.js

GitHub: mdmarufsarker/lodash

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console.log(isFinite); // => true


const isFunction = _.isFunction(() => {});
console.log(isFunction); // => true


const isInteger = _.isInteger(1);
console.log(isInteger); // => true


const isLength = _.isLength(3);
console.log(isLength); // => true

+ 15 other calls in file

publishArticles.js

GitHub: activisthandbook/activisthandbook-editor

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case "array":
  hasCorrectType = _.isArray(value);
  sanitizedValue = sanitize(JSON.stringify(value));
  break;
case "number":
  hasCorrectType = _.isInteger(value);
  sanitizedValue = value;
  break;
case "focusMode":
  hasCorrectType =

Ai Example

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const _ = require("lodash");

console.log(_.isInteger(5)); // true
console.log(_.isInteger(5.5)); // false
console.log(_.isInteger("5")); // false

In this example, lodash.isInteger is used to check if a value is an integer number. The function returns true if the input is an integer, and false otherwise.

dates.js

GitHub: Qwiery/qwiery

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    return null;
} else if (_.isNumber(obj)) {
    const intNum = _.toNumber(obj);
    // if the number is negative it means it's an event before 1970
    // but from a business perspective this is not accepted
    if (!_.isNaN(intNum) && intNum >= 0 && _.isInteger(intNum)) {
        if (Dates.isValidDate(new Date(intNum))) {
            return new Date(intNum);
        }
    }

+ 23 other calls in file

sign.js

GitHub: tanverhasanre/jsonwebtoken_tool

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  SUPPORTED_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512');
}


const sign_options_schema = {
  expiresIn: { isValid: function(value) { return isInteger(value) || (isString(value) && value); }, message: '"expiresIn" should be a number of seconds or string representing a timespan' },
  notBefore: { isValid: function(value) { return isInteger(value) || (isString(value) && value); }, message: '"notBefore" should be a number of seconds or string representing a timespan' },
  audience: { isValid: function(value) { return isString(value) || Array.isArray(value); }, message: '"audience" must be a string or array' },
  algorithm: { isValid: includes.bind(null, SUPPORTED_ALGS), message: '"algorithm" must be a valid string enum value' },
  header: { isValid: isPlainObject, message: '"header" must be an object' },
  encoding: { isValid: isString, message: '"encoding" must be a string' },

validators.js

GitHub: carboni09/strapi4.0.7-custom

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 * @param {boolean} options.isDraft
 *
 * @returns {StringSchema}
 */
const addMinLengthValidator = (validator, { attr }, { isDraft }) =>
  _.isInteger(attr.minLength) && !isDraft ? validator.min(attr.minLength) : validator;


/**
 * Adds maxLength validator
 * @param {StringSchema} validator yup validator

+ 7 other calls in file

models.js

GitHub: salmantanvir8/mkd

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let where = parameters;

for (const key in where) {
  if (where.hasOwnProperty.call(where, key)) {
    const element = where[key];
    if (element.length || isInteger(element) || element === Object(element)) {
      where[key] = element;
    } else {
      delete where[key];
    }

validator-context.js

GitHub: centre-for-humanities-computing/validator

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 * @param {string} [errorMessage] the error message. If defined and the predicate is not fulfilled an error with the message will be thrown
 * @param {string|number|(string|number)[]} [messageArgs] values for placeholders in the errorMessage
 * @returns {boolean} the result of the predicate
 */
anInteger(errorMessage, messageArgs) {
    let success = _.isInteger(this.#contextValue);
    if (Debug.enabled) {
        this.#printDebug(this.anInteger.name, success);
    }
    return this.#handleError(success, errorMessage, messageArgs);

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