Home

Index

How to use the startsWith function from lodash

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

lodash.startsWith is a method in the Lodash library that checks if a string starts with a specified prefix.

packExternalModules.js

67
68
69
70
71
72
73
74
75
76

  return main;
}

function isExternalModule(module) {
  return _.startsWith(module.identifier(), 'external ') && !isBuiltinModule(getExternalModuleName(module));
}

/**
 * Find the original module that required the transient dependency. Returns

409

+ 5 other calls in file

lodash-contrib.commonjs.js

GitHub: node4good/lodash-contrib

361
362
363
364
365
366
367
368
369
370
module.exports.split               = _.split;
module.exports.splitAt             = _.splitAt;
module.exports.splitWith           = _.splitWith;
module.exports.spread              = _.spread;
module.exports.startCase           = _.startCase;
module.exports.startsWith          = _.startsWith;
module.exports.strContains         = _.strContains;
module.exports.stripTags           = _.stripTags;
module.exports.sub                 = _.sub;
module.exports.subtract            = _.subtract;

122

+ 92 other calls in file

How does lodash.startsWith work?

lodash.startsWith is a utility function provided by the Lodash library which checks whether a string starts with a specified substring and returns a boolean value indicating the result. It takes two arguments: the string to check and the substring to test for. If the provided string starts with the specified substring, startsWith returns true, otherwise it returns false. The function is case-sensitive by default, but an optional third argument can be used to make it case-insensitive. The implementation uses a simple comparison of the substring with the first characters of the string, and returns true or false accordingly.

lodash.js

GitHub: mdmarufsarker/lodash

838
839
840
841
842
843
844
845
846
847
848
849
850
console.log(split); // => ['a', 'b']


const startCase = _.startCase('--foo-bar--');
console.log(startCase); // => 'Foo Bar'


const startsWith = _.startsWith('abc', 'a');
console.log(startsWith); // => true


const template = _.template('hello <%= user %>!');
console.log(template({ 'user': 'fred' })); // => 'hello fred!'

+ 15 other calls in file

withPrefix.js

GitHub: kealanparr/developer-forge

3
4
5
6
7
8
9
10
11
12
13
export default function withPrefix(url) {
    if (!url) {
        return url;
    }


    if (_.startsWith(url, '#') || _.startsWith(url, 'http://') || _.startsWith(url, 'https://')) {
        return url;
    }
    const basePath = _.trim(pathPrefix, '/');
    return '/' + _.compact([basePath, _.trimStart(url, '/')]).join('/');

Ai Example

1
2
3
4
5
6
7
const _ = require("lodash");

const str = "Hello world!";

console.log(_.startsWith(str, "Hello")); // true
console.log(_.startsWith(str, "world")); // false
console.log(_.startsWith(str, "o", 4)); // true

In this example, lodash.startsWith is used to check if the string 'Hello world!' starts with the substring 'Hello', the substring 'world', and the character 'o' at index 4. The output of the three console.log statements will be true, false, and true, respectively.

schema-routes.js

GitHub: acacode/swagger-typescript-api

273
274
275
276
277
278
279
280
281
282

if (_.some(contentTypes, (contentType) => _.includes(contentType, "image/"))) {
  return CONTENT_KIND.IMAGE;
}

if (_.some(contentTypes, (contentType) => _.startsWith(contentType, "text/"))) {
  return CONTENT_KIND.TEXT;
}

return CONTENT_KIND.OTHER;

236

i.js

GitHub: nasolodar/test

5
6
7
8
9
10
11
12
13
14
15
const RelationBase = require('./base/relation');
const Promise = require('bluebird');
const constants = require('./constants');
const push = Array.prototype.push;
const removePivotPrefix = (key) => key.slice(constants.PIVOT_PREFIX.length);
const hasPivotPrefix = (key) => _.startsWith(key, constants.PIVOT_PREFIX);


/**
 * @classdesc
 *   Used internally, the `Relation` class helps in simplifying the relationship building,

org-rules.js

GitHub: arcxp/datadog-service-catalog-metadata-provider

159
160
161
162
163
164
165
166
167
168
}

for (const [tagKey, tagValue] of Object.entries(tags)) {
  const foundTag =
    serviceDefinition?.tags?.find((tag) =>
      _.startsWith(tag.toLocaleLowerCase(), tagKey.toLocaleLowerCase()),
    ) || undefined

  if (!foundTag) {
    return false

+ 3 other calls in file

event-client.js

GitHub: norjs/event

39
40
41
42
43
44
45
46
47
48
/**
 * @type {Array.<string>}
 */
const TRIGGER_EVENTS = _.filter(
	ARGS,
	arg => _.startsWith(arg, TRIGGER_PREFIX_ARG)
).map(
	a => a.substr(TRIGGER_PREFIX_ARG.length)
);

+ 11 other calls in file

compile.js

GitHub: th3rdwave/serverless-rspack

41
42
43
44
45
46
47
48
49
50
51
  return main;
}


function isExternalModule(module) {
  return (
    _.startsWith(module.identifier, 'external ') &&
    !isBuiltinModule(getExternalModuleName(module))
  );
}

+ 4 other calls in file

url-resolver.js

GitHub: RedPeanut/homepage.src

24
25
26
27
28
29
30
31
32
if (_.isUndefined(pageData.path)) return undefined

let pagePath = pageData.path

// Deforce a starting slash on all paths
const pathStartsWithSlash = _.startsWith(pagePath, '/')
if (pathStartsWithSlash) {
  pagePath = `${pagePath}`
}

+ 4 other calls in file

scan-snippets.js

GitHub: NLKNguyen/code-formation

78
79
80
81
82
83
84
85
86
87
// } catch (e) {
//   throw new Error(`${file}:${line_index + 1} invalid parameters`)
// }
// // console.log(params)
// const invalid_params = _.keys(params)
//   .filter((key) => _.startsWith(key, "_"))
//   .map((e) => `"${e}"`)
//   .join(",")

// if (invalid_params) {

server.js

GitHub: RizenPanelV1/Blaze

109
110
111
112
113
114
115
116
117
118
    ], next);
}

initContainer(next) {
    this.docker = new Docker(this, (err, status) => {
        if (err && _.startsWith(_.get(err, 'json.message', 'error'), 'No such container')) {
            this.log.warn('Container was not found. Attempting to recreate it.');
            this.rebuild(rebuildErr => {
                if (rebuildErr && !_.isUndefined(rebuildErr.statusCode)) {
                    if (_.startsWith(_.get(rebuildErr, 'json.message'), 'No such image')) {

request.js

GitHub: sindeshiva/Test

86
87
88
89
90
91
92
93
94
95
96
97
    !statusCode.isOk(res.statusCode),
  ])
}


const isErrEmptyResponseError = (err) => {
  return _.startsWith(err.message, 'ERR_EMPTY_RESPONSE')
}


const isRetriableError = (err = {}, retryOnNetworkFailure) => {
  return _.every([

cli.js

GitHub: cypress-io/cypress

69
70
71
72
73
74
75
76
77
78
])

_.forEach(multiArgFlags, (flag) => {
  const argIndex = _.indexOf(args, `--${flag}`) + 2
  const nextOptOffset = _.findIndex(_.slice(args, argIndex), (arg) => {
    return _.startsWith(arg, '--')
  })
  const endIndex = nextOptOffset !== -1 ? argIndex + nextOptOffset : args.length

  const maybeArgs = _.slice(args, argIndex, endIndex)

622

Other functions in lodash

Sorted by popularity

lodash.get is the most popular function in lodash (7670 examples)

Other popular packages:

Home

About