How to use

indexOf

function

in

String

app.use(serveStatic(path.join(__dirname, '../playground'), {
   lastModified: false,
   etag: false,
   setHeaders: (res, url) => {
    if (url.indexOf('/index.html') !== -1) {
     res.setHeader('Cache-Control', 'no-cache');
    }
   }
  }));

function simplifyObject(object) {
 return Object.keys(object)
  .filter(k => k.indexOf('_') !== 0)
  .filter(k => typeof object[k] !== 'function')
  .filter(k => typeof object[k] !== 'object')
  .reduce((obj, key) => {
   obj[key] = object[key];
   return obj;
  }, {});
}

result.map(function(name) {
   if (name.indexOf('req.') === 0) {
    name = reqHeaders[name.substring(4)];
    name && reqResult.push(name);
    return;
   }
   return headers[name];
  }).filter(noop)

/**
 * Check if element has class.
 * @param {Element} element - The DOM element.
 * @param {string} cls - The class name string.
 */


function jqLiteHasClass(element, cls) {
 if (!cls || !element.getAttribute) return false;
 return _getExistingClasses(element).indexOf(' ' + cls + ' ') > -1;
}

/**
  * Checks if a ISO8601 formatted date contains a timezone component
  * @param pushTimeParam {string}
  * @returns {boolean}
  */


 static pushTimeHasTimezoneComponent(pushTimeParam) {
  const offsetPattern = /(.+)([+-])\d\d:\d\d$/;
  return pushTimeParam.indexOf('Z') === pushTimeParam.length - 1 || // 2007-04-05T12:30Z
  offsetPattern.test(pushTimeParam); // 2007-04-05T12:30.000+02:00, 2007-04-05T12:30.000-02:00
 }

https.createServer(options, function(req, res) {
 if (req.url.indexOf('test-remote.rules') !== -1) {
  return res.end('str2.w2.org/index.html file://`(${search.replace(a,b)})`\nstr2.w2.org/index2.html file://`(${query.replace(/a/g,b)})`');
 }
 res.end(JSON.stringify({
  headers: req.headers,
  body: 'test'
 }));
}).listen(config.httpsPort, startTest);

source() {
  let value = this.value || '\n';
  let short = <ReplOutputString str={value.slice(0, value.indexOf('\n'))}
   limit={ReplConstants.OUTPUT_TRUNCATE_LENGTH / 2}/>;

  return <ReplOutputCljsSource short={short} source={ReplCommon.highlight(this.value)}/>
 }

/**
  * Indicates the index of a given alpha character.
  * @param {Character} c Character to be checked.
  * @returns Index of the character, -1 if is invalid.
  */
 static alphaIndex(c) {
  return XTableUtils.alphachars.indexOf(c);
 }

function filterHeader(obj) {
  var o={};
  for(var key in obj)
  {
    if(key.indexOf("-doclever")==-1)
    {
      o[key]=obj[key];
    }
  }
  return o;
}

/**
 * Check if element has class.
 * @param {Element} element - The DOM element.
 * @param {string} cls - The class name string.
 */


function jqLiteHasClass(element, cls) {
 if (!cls || !element.getAttribute) return false;
 return _getExistingClasses(element).indexOf(' ' + cls + ' ') > -1;
}

/**
 * Check if element has class.
 * @param {Element} element - The DOM element.
 * @param {string} cls - The class name string.
 */


function jqLiteHasClass(element, cls) {
 if (!cls || !element.getAttribute) return false;
 return _getExistingClasses(element).indexOf(' ' + cls + ' ') > -1;
}

/**
 * Check if element has class.
 * @param {Element} element - The DOM element.
 * @param {string} cls - The class name string.
 */
function jqLiteHasClass(element, cls) {
 if (!cls || !element.getAttribute) return false;
 return (_getExistingClasses(element).indexOf(' ' + cls + ' ') > -1);
}

/**
 * Returns true if we detect a core Gutenberg comment block
 *
 * @param   {string }   content - html string
 * @returns { boolean } true if we think we found a block
 */
export function hasGutenbergBlocks( content ) {
  return !! content && content.indexOf( '<!-- wp:' ) !== -1;
}

/**
 * Check if element has class.
 * @param {Element} element - The DOM element.
 * @param {string} cls - The class name string.
 */


function jqLiteHasClass(element, cls) {
 if (!cls || !element.getAttribute) return false;
 return _getExistingClasses(element).indexOf(' ' + cls + ' ') > -1;
}

/**
 * Check if element has class.
 * @param {Element} element - The DOM element.
 * @param {string} cls - The class name string.
 */
function jqLiteHasClass(element, cls) {
 if (!cls || !element.getAttribute) return false;
 return (_getExistingClasses(element).indexOf(' ' + cls + ' ') > -1);
}