docs

Init context

open( filePath, [mode] )

k6

check( val, sets, [tags] )
fail( [err] )
group( name, fn )
randomSeed( int )
sleep( t )

k6/crypto

createHash( algorithm )
createHMAC( algorithm, secret )
hmac( algorithm, secret, data, outputEncoding )
md4( input, outputEncoding )
md5( input, outputEncoding )
randomBytes( int )
ripemd160( input, outputEncoding )
sha1( input, outputEncoding )
sha256( input, outputEncoding )
sha384( input, outputEncoding )
sha512( input, outputEncoding )
sha512_256( input, outputEncoding )
sha512_224( input, outputEncoding )
Hasher

k6/data

SharedArray

k6/encoding

b64decode( input, [encoding], [format] )
b64encode( input, [encoding] )

k6/execution

k6/experimental

browser
grpc
redis
timers
tracing
websockets
webcrypto

k6/html

parseHTML( src )
Element
Selection

k6/http

asyncRequest( method, url, [body], [params] )
batch( requests )
cookieJar()
del( url, [body], [params] )
file( data, [filename], [contentType] )
get( url, [params] )
head( url, [params] )
options( url, [body], [params] )
patch( url, [body], [params] )
post( url, [body], [params] )
put( url, [body], [params] )
request( method, url, [body], [params] )
setResponseCallback( callback )
url`url`
expectedStatuses( statuses )
CookieJar
FileData
Params
Response

k6/metrics

Counter
Gauge
Rate
Trend

k6/net/grpc

Client
Params
Response
Constants

k6/ws

connect( url, params, callback )
Params
Socket

Error Codes

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Selection.is(selector)

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Check the current matched set of elements against a selector or element and return true if at least one of these elements matches the given arguments. Mimics jquery.is

ParameterTypeDescription
selectorfunctionA function used as a test for each element in the set
selectorstringA string containing a selector expression to match elements against.
selectorSelectionA selection.

Returns

TypeDescription
SelectionThe filter selection.

Example

import { parseHTML } from 'k6/html';
import { sleep } from 'k6';


export default function () {
  const content = `
<dl>
  <dt id="term-1">term 1</dt>
  <dd>definition 1-a</dd>
  <dd>definition 1-b</dd>
  <dd>definition 1-c</dd>
  <dd>definition 1-d</dd>


  <dt id="term-2">term 2</dt>
  <dd>definition 2-a</dd>
  <dd>definition 2-b</dd>
  <dd>definition 2-c</dd>


  <dt id="term-3">term 3</dt>
  <dd>definition 3-a</dd>
  <dd>definition 3-b</dd>
</dl>
  `;
  const doc = parseHTML(content);


  let result;


  const els = doc.find('dl').children();


  result = els.is('dd');
  console.log(result);


  result = els.is(function (idx, el) {
    return el.text() === 'hola';
  });
  console.log(result);


  result = els.is(els.first());
  console.log(result);


  sleep(1);
}