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How to use the isNumber function from lodash

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

lodash.isNumber is a function that determines whether a given value is a number or not, returning a boolean.

astrobench.js

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 * @category Objects
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if the `value` is a number, else `false`.
 * @example
 *
 * _.isNumber(8.4 * 5);
 * // => true
 */
function isNumber(value) {
  return typeof value == 'number' ||

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browser-options.js

GitHub: gemini-testing/hermione

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validate: (value) => {
    if (_.isNull(value)) {
        return;
    }
    if (_.isObject(value)) {
        if (_.isNumber(value.width) && _.isNumber(value.height)) {
            return;
        } else {
            throw new Error('"windowSize" must be an object with "width" and "height" keys');
        }

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+ 2 other calls in file

How does lodash.isNumber work?

lodash.isNumber is a function that checks if a given value is a number or not, by checking if it is of type "number" or if it can be successfully coerced into a number. It returns a boolean value indicating whether the value is a number or not.

lodash-contrib.commonjs.js

GitHub: node4good/lodash-contrib

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module.exports.isNaN               = _.isNaN;
module.exports.isNative            = _.isNative;
module.exports.isNegative          = _.isNegative;
module.exports.isNil               = _.isNil;
module.exports.isNull              = _.isNull;
module.exports.isNumber            = _.isNumber;
module.exports.isNumeric           = _.isNumeric;
module.exports.isObject            = _.isObject;
module.exports.isObjectLike        = _.isObjectLike;
module.exports.isOdd               = _.isOdd;

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+ 92 other calls in file

index.js

GitHub: rudderlabs/rudder-transformer

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  if (!_.isNumber(defaultStatusCode)) {
    defaultStCode = 400;
  }
  const errStCode = errorStatusCodeKeys
    .map((statusKey) => get(error, statusKey))
    .find((stCode) => _.isNumber(stCode));
  return errStCode || defaultStCode;
} catch (err) {
  logger.error('Failed in getErrorStatusCode', err);
  return defaultStatusCode;

Ai Example

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const _ = require("lodash");

console.log(_.isNumber(42)); // true
console.log(_.isNumber("42")); // false
console.log(_.isNumber(NaN)); // true
console.log(_.isNumber(Infinity)); // true
console.log(_.isNumber(-Infinity)); // true

In this example, lodash.isNumber is used to determine whether a given value is a number or not. The function returns true if the value is a number and false otherwise. The example demonstrates how the function works with various inputs, including integers, strings, NaN, Infinity, and -Infinity.

utils.js

GitHub: bcgov/common-hosted-form-service

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else if(_.isPlainObject(obj[key])) {

  findField(obj[key], keyPath?keyPath+'.'+key:key);
}

else if (_.isString(obj[key]) || _.isNumber(obj[key]) || _.isPlainObject(obj[key])  || _.isDate(obj[key])) {
  if(key!=='submit') {
    objectMap.add(keyPath?keyPath+'.'+key:key);
  }
}

fromPgn.js

GitHub: canboat/canboatjs

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  } else {
    value = lookup(field, value)
  }
}

if ( field.Name === 'Industry Code' && _.isNumber(value) && runPostProcessor ) {
  var name = getIndustryName(value)
  if ( name ) {
    value = name
  }

index.js

GitHub: ultrapacer/core

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    Object.defineProperty(this, f, { get () { return this._point[f] } })
  })
}

has (field) {
  return _.isNumber(this[field])
}

get pace () {
  const factors = this.factors?.combined

+ 2 other calls in file

lodash.js

GitHub: mdmarufsarker/lodash

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


const isNull = _.isNull(null);
console.log(isNull); // => true


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


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

+ 15 other calls in file

address.js

GitHub: aspectron/kaspa-core-lib

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if (!(this instanceof Address)) {
  return new Address(data, network, type);
}

if (_.isArray(data) && _.isNumber(network)) {
  return Address.createMultisig(data, network, type);
}

if (data instanceof Address) {

connector.js

GitHub: codeforequity-at/botium-connector-dialogflowcx

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}

_extractEntityValues (key, field) {
  if (_.isNull(field) || _.isUndefined(field)) {
    return []
  } else if (_.isString(field) || _.isNumber(field) || _.isBoolean(field)) {
    return [{
      name: key,
      value: field
    }]

+ 53 other calls in file

ERC721.js

GitHub: splabs-info/airtnt_bc_server

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//         return Promise.reject(error);
//     }
// };

#validateMultiBurn = ({ arrTokenId }) => {
    if (arrTokenId.map((tokenId) => isNumber(tokenId)).filter((isOk) => !isOk).length === 0) return true;
    else {
        throw new AppError({
            ...ModulesValidationError,
            details: "Error at validateMultiBurn",

+ 2 other calls in file

Rubric.js

GitHub: TzMik/WebAnnotationSPL

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rubric.criterias = _.orderBy(rubric.criterias, ['criteriaId'])
for (let i = 0; i < levelsAnnotations.length; i++) {
  let levelAnnotation = levelsAnnotations[i]
  // Get criteria corresponding to the level
  let levelConfig = jsYaml.load(levelAnnotation.text)
  if (_.isObject(levelConfig) && _.isNumber(levelConfig.criteriaId)) {
    let criteriaId = levelConfig.criteriaId
    let criteria = _.find(rubric.criterias, (criteria) => {
      return criteria.criteriaId === criteriaId
    })

build.js

GitHub: fadi12321/test-for-deep-8

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    if (item === 'description' && isString(value)) {
      value = value.replace(/\n/g, ' ');
    }
    return {
      ...acc,
      [item]: isString(value) || isNumber(value) ? value : JSON.stringify(value),
    };
  }, {});


const convertFieldsToHash = (schemaFields, beatFields, path) =>

+ 12 other calls in file

helper.js

GitHub: SumeetOutlook/sumeet-practice

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exports.isFunction = _.isFunction
exports.isString = _.isString
exports.isObject = _.isObject
exports.isArray = _.isArray
exports.isNumber = _.isNumber


const ABS_URL = /^https?:\/\//
exports.isUrlAbsolute = (url) => {
  return ABS_URL.test(url)

+ 3 other calls in file

job.service.js

GitHub: perfect2021324/hourcrypto

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  let query
  filter = _.omitBy(filter, _.isUndefined)
  if (_.isPlainObject(filter)) query = Job.find(filter, projection ?? {})
  query = jobQueryPopulate(query)
  if (_.isPlainObject(sort)) query = query.sort(sort)
  if (limit && _.isNumber(limit)) query = query.limit(limit)
  jobs = query.lean().exec()
  return jobs
}

graphUtils.js

GitHub: Qwiery/qwiery

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if (_.isString(a)) {
    return _.isString(b) ? a === b : false;
} else if (_.isBoolean(a)) {
    return _.isBoolean(b) ? a === b : false;
} else if (_.isNumber(a)) {
    return _.isNumber(b) ? a === b : false;
} else if (Utils.isDefined(a.id)) {
    return a.id === b.id;
} else if (_.isPlainObject(a)) {
    if (Utils.isDefined(a.sourceId)) {

utils.js

GitHub: Qwiery/qwiery

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 * @param id? {string|function} An id or a function returning one.
 * @param labels? {string|string[]|function} A label, multiple labels or a function returning this.
 * @returns {string|null}
 */
getIdFromSpecs(data = null, id = null, labels = null) {
    if (_.isString(data) || _.isNumber(data) || _.isBoolean(data)) {
        return data.toString().trim();
    }
    id = Utils.getString(id);
    if (Utils.isEmpty(id)) {

validators.js

GitHub: carboni09/strapi4.0.7-custom

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 * @param {{ max: Number }} metas.attr model attribute
 *
 * @returns {NumberSchema}
 */
const addMaxIntegerValidator = (validator, { attr }) =>
  _.isNumber(attr.max) ? validator.max(_.toInteger(attr.max)) : validator;


/**
 * Adds min float/decimal validator
 * @param {NumberSchema} validator yup validator

+ 15 other calls in file

index.cjs

GitHub: vzakharov/vovas-utils-ts

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const commonPredicates = {
  undefined: (arg) => _.isUndefined(arg),
  null: (arg) => _.isNull(arg),
  string: (arg) => _.isString(arg),
  emptyString: (arg) => arg === "",
  number: (arg) => _.isNumber(arg),
  zero: (arg) => arg === 0,
  boolean: (arg) => _.isBoolean(arg),
  false: (arg) => arg === false,
  true: (arg) => arg === true,

+ 3 other calls in file

hdpublickey.js

GitHub: DucatusX/ducatus-bitcore

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HDPublicKey.prototype._buildFromObject = function(arg) {
  /* jshint maxcomplexity: 10 */
  // TODO: Type validation
  var buffers = {
    version: arg.network ? BufferUtil.integerAsBuffer(Network.get(arg.network).xpubkey) : arg.version,
    depth: _.isNumber(arg.depth) ? BufferUtil.integerAsSingleByteBuffer(arg.depth) : arg.depth,
    parentFingerPrint: _.isNumber(arg.parentFingerPrint) ? BufferUtil.integerAsBuffer(arg.parentFingerPrint) : arg.parentFingerPrint,
    childIndex: _.isNumber(arg.childIndex) ? BufferUtil.integerAsBuffer(arg.childIndex) : arg.childIndex,
    chainCode: _.isString(arg.chainCode) ? BufferUtil.hexToBuffer(arg.chainCode) : arg.chainCode,
    publicKey: _.isString(arg.publicKey) ? BufferUtil.hexToBuffer(arg.publicKey) :

+ 3 other calls in file

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