How to use the isString function from lodash
Find comprehensive JavaScript lodash.isString code examples handpicked from public code repositorys.
lodash.isString is a function in the Lodash library that checks if a value is a string.
32 33 34 35 36 37 38 39 40 41
export function isNonEmptyObject(obj) { return _.isObject(obj) && Object.keys(obj).length > 0; } export function isNonEmptyString(str) { return _.isString(str) && str.trim().length > 0; } export function isEmptyString(str) { return !(_.isString(str) && str.trim().length > 0);
+ 3 other calls in file
87 88 89 90 91 92 93 94 95 96
}, renderDropdown : function(dropdownChildren){ if(!this.state.showDropdown) return null; if(this.props.autoSuggest && !this.state.inputFocused){ const suggestMethod = this.props.autoSuggest.suggestMethod; const filterOn = _.isString(this.props.autoSuggest.filterOn) ? [this.props.autoSuggest.filterOn] : this.props.autoSuggest.filterOn; const filteredArrays = filterOn.map((attr)=>{ const children = dropdownChildren.filter((item)=>{ if(suggestMethod === 'includes'){ return item.props[attr]?.toLowerCase().includes(this.state.value.toLowerCase());
How does lodash.isString work?
Sure! lodash.isString is a function in the Lodash library that checks if a value is a string. The purpose of lodash.isString is to determine whether a given value is a string or not. If the value is a string, lodash.isString returns true. If the value is not a string, lodash.isString returns false. To use lodash.isString, you call it with a single argument: the value you want to check. lodash.isString then returns a boolean value (true or false) depending on whether the value is a string. For example, consider the following code: javascript Copy code {{{{{{{ import { isString } from 'lodash'; console.log(isString('hello')); // true console.log(isString(42)); // false console.log(isString(null)); // false In this example, we first import the isString function from the lodash library. We then call isString with three different arguments: the string 'hello', the number 42, and the value null. In the first call to isString, the argument is a string, so isString returns true. In the second call to isString, the argument is a number, which is not a string. isString therefore returns false. In the third call to isString, the argument is null, which is not a string. isString therefore returns false. This code demonstrates how lodash.isString can be used to check if a given value is a string.
3170 3171 3172 3173 3174 3175 3176 3177 3178 3179
* var otherWords = ['hi', 'goodbye']; * * _.isEqual(words, otherWords, function(a, b) { * var reGreet = /^(?:hello|hi)$/i, * aGreet = _.isString(a) && reGreet.test(a), * bGreet = _.isString(b) && reGreet.test(b); * * return (aGreet || bGreet) ? (aGreet == bGreet) : undefined; * }); * // => true
+ 5 other calls in file
353 354 355 356 357 358 359 360 361 362
} async deleteMacRelatedAlarms(mac) { let alarms = await this.loadRecentAlarmsAsync(60 * 60 * 24 * 7); let related = alarms .filter(alarm => _.isString(alarm['p.device.mac']) && alarm['p.device.mac'].toUpperCase() === mac.toUpperCase()) .map(alarm => alarm.aid); if (related.length) {
Ai Example
1 2 3 4 5
import { isString } from "lodash"; console.log(isString("hello")); // true console.log(isString(42)); // false console.log(isString(["foo", "bar"])); // false
In this example, we first import the isString function from the lodash library. We then call isString with three different arguments: the string 'hello', the number 42, and an array ['foo', 'bar']. In the first call to isString, the argument is a string, so isString returns true. In the second call to isString, the argument is a number, which is not a string. isString therefore returns false. In the third call to isString, the argument is an array, which is not a string. isString therefore returns false. This code demonstrates how lodash.isString can be used to check if a given value is a string.
24 25 26 27 28 29 30 31 32 33 34
} } return {} } const asNumber = inputString => isString(inputString) ? Number(inputString) : inputString const asBoolean = inputString => isString(inputString) ? inputString.toLowerCase() === 'true' : inputString const asString = inputString => inputString const asJson = inputString => isString(inputString) ? JSON.parse(inputString) : inputString
+ 2 other calls in file
588 589 590 591 592 593 594 595 596 597 598 599
}); async function getVerificationResults(domain, resolver) { const verificationRecord = `${config.recordPrefix}-site-verification=${domain.verification_record}`; const verificationMarkdown = `<span class="markdown-body ml-0 mr-0"><code>${verificationRecord}</code></span>`; const isPaidPlan = _.isString(domain.plan) && domain.plan !== 'free'; // // attempt to purge Cloudflare cache programmatically //
217 218 219 220 221 222 223 224 225 226
module.exports.isPositive = _.isPositive; module.exports.isRegExp = _.isRegExp; module.exports.isSafeInteger = _.isSafeInteger; module.exports.isSequential = _.isSequential; module.exports.isSet = _.isSet; module.exports.isString = _.isString; module.exports.isSymbol = _.isSymbol; module.exports.isTypedArray = _.isTypedArray; module.exports.isUndefined = _.isUndefined; module.exports.isValidDate = _.isValidDate;
+ 92 other calls in file
GitHub: chrisbreiding/zunder
![chrisbreiding profile picture](/chrisbreiding.png?size=40)
105 106 107 108 109 110 111 112 113
], } const addBrowserifyConfig = (addBrowserifyConfigTo) => { _.each(addBrowserifyConfigTo, (pathOrOptions) => { const isSimple = _.isString(pathOrOptions) const filePath = isSimple ? pathOrOptions : pathOrOptions.path const options = isSimple ? defaultBrowserifyConfig : (pathOrOptions.options || defaultBrowserifyConfig) const packagePath = path.join(filePath, 'package.json')
36 37 38 39 40 41 42 43 44 45
export function isNonEmptyString(str) { return _.isString(str) && str.trim().length > 0; } export function isEmptyString(str) { return _.isString(str) && str.trim().length === 0; } export function removeNullProperties(obj) { for (const propName in obj) {
+ 23 other calls in file
1030 1031 1032 1033 1034 1035 1036 1037 1038 1039
* @private */ _createProperty(in_typeid, in_context, in_initialProperties, in_scope) { const ifNotSingleOrUndefined = (in_context || "single") !== "single"; ConsoleUtils.assert( ifNotSingleOrUndefined || _.isString(in_typeid), MSG.UNKNOWN_TYPEID_SPECIFIED + in_typeid, ); let context = in_context; if (!context) {
GitHub: canboat/canboatjs
382 383 384 385 386 387 388 389 390 391 392
} } fieldTypeMappers['Date'] = (field, value) => { //console.log(`Date: ${value}`) if ( _.isString(value) ) { var date = new Date(value) return date.getTime() / 86400 / 1000 }
+ 6 other calls in file
GitHub: canboat/canboatjs
569 570 571 572 573 574 575 576 577 578
value += field.Offset } if ( field.Resolution && typeof value === 'number' ) { var resolution = field.Resolution if ( _.isString(resolution) ) { resolution = Number.parseFloat(resolution) } value = (value * resolution)
GitHub: JamilOmar/lsc
![JamilOmar profile picture](/JamilOmar.png?size=40)
63 64 65 66 67 68 69 70 71 72
* @param {string} filePath - The path to a JSON file * @returns {Object|undefined} */ export function readJSON(filePath: string) { assert.ok( _.isString(filePath) && !_.isEmpty(filePath), 'readJSON: `filePath` must be a non-empty string', ); filePath = path.resolve(filePath);
+ 5 other calls in file
GitHub: bcgov/EDUC-STUDENT-ADMIN
124 125 126 127 128 129 130 131 132 133 134 135
} } function minify(obj, keys = ['documentData']) { return lodash.transform(obj, (result, value, key) => result[key] = keys.includes(key) && lodash.isString(value) ? value.substring(0, 1) + ' ...' : value); } async function logResponseData(url, response, operationType) { log.info(`${operationType} Data Status for url ${url} :: is :: `, response.status);
580 581 582 583 584 585 586 587 588 589 590 591
if ((prop in model) && (prop in parent)) mergedprops[prop] = mergefunc(model[prop], parent[prop]); } exports.MergeModelArray = function(newval, oldval, eachItem){ var _this = this; if(!newval || _.isString(newval)) return newval; try{ var rslt = newval.slice(0); }
3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763
return _noopValidator.apply(this, arguments); } function getBtnClassName(action, classNameSuffix, title) { var prefix = "btn-".concat(action); return cx(prefix, lodash.isString(title) && "".concat(prefix, "-").concat(lodash.kebabCase(title)), _defineProperty({}, "".concat(prefix, "-").concat(classNameSuffix), !!classNameSuffix)); } function formatClassNames(className) { var colon = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false; var layout = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : LAYOUT_TYPES.VERTICAL;
298 299 300 301 302 303 304 305 306 307
if (_.isArray(reason) && !reason.every((r) => _.isString(r))) { throw new TypeError( "SupportObjectGenerator: all reasons in Array must be of type String" ); } if (_.isArray(reason) && reason.every((r) => _.isString(r))) { this.#support.destroyReasons = [ ...new Set([...this.#support.destroyReasons, ...reason]), ]; }
GitHub: mdmarufsarker/lodash
482 483 484 485 486 487 488 489 490 491 492 493 494
console.log(isSafeInteger); // => true const isSet = _.isSet(new Set); console.log(isSet); // => true const isString = _.isString('abc'); console.log(isString); // => true const isSymbol = _.isSymbol(Symbol.iterator); console.log(isSymbol); // => true
+ 15 other calls in file
GitHub: sdaigle2/Abacus-mvp
40 41 42 43 44 45 46 47 48 49 50
* Destroy Docs: https://github.com/apache/couchdb-nano#dbdestroydocname-rev-callback */ // _.forEach(EXPORTED_DBS, db => { // db.deleteDoc = function (docID, docRev, cb) { // var givenDocID = _.isString(docID) || _.isNumber(docID); // var givenDocRev = _.isString(docRev); // var givenCallback = _.isFunction(cb); // if (givenDocID && givenDocRev && givenCallback) { // db.destroy(docID, docRev, cb);
+ 25 other calls in file
162 163 164 165 166 167 168 169 170 171
// LOADING THE * policy in policies folder if (axel.config.policies['*']) { if (Array.isArray(axel.config.policies['*'])) { policies = policies.concat(axel.config.policies['*']); } else if ( _.isString(axel.config.policies['*']) || _.isFunction(axel.config.policies['*']) ) { policies.push(axel.config.policies['*']); }
lodash.get is the most popular function in lodash (7670 examples)