How to use

safeDump

function

in

js-yaml

function toYAML (value) {
 return yaml.safeDump(value, { noRefs: true }).trim()
}

/**
  * Dumps an object to a YAML file
  *
  * @since 3.0.0
  * @alias lando.yaml.dump
  * @param {String} file The path to the file to be loaded
  * @param {Object} data The object to dump
  * @return {String} Flename
  */
 dump(file, data = {}) {
  // Make sure we have a place to store these files
  mkdirp.sync(path.dirname(file));
  // Remove any properties that might be bad and dump
  data = JSON.parse(JSON.stringify(data));
  // And dump
  fs.writeFileSync(file, yaml.safeDump(data));
  // Log and return filename
  return file;
 }

function stringify(obj) {
 return yaml.safeDump(obj);
}

/**
 * Takes in a JavaScript object and outputs a TAP diagnostics string
 * @param {Object} diagnostic JavaScript object to be embedded as YAML into output.
 * @returns {string} diagnostics string with YAML embedded - TAP version 13 compliant
 */
function outputDiagnostics(diagnostic) {
  const prefix = "  ";
  let output = `${prefix}---\n`;

  output += prefix + yaml.safeDump(diagnostic).split("\n").join(`\n${prefix}`);
  output += "...\n";
  return output;
}

/**
   * Create a new migration file
   * @param {object} data
   * @property {string} up Up SQL
   * @property {string} down Down SQL
   * @property {string} specs JSON representation of the currect models
   */
  _createMigrationFile(data) {
    const filename = helpers.createMigrationFileName() + '.yml';
    const filePath = path.join(this.dana.config('baseDir'), 'migrations', filename);
    return fs.writeFile(filePath, yaml.safeDump(data)).then(() => filePath);
  }

/**
 * Writes a configuration file in YAML format.
 * @param {Object} config The configuration object to write.
 * @param {string} filePath The filename to write to.
 * @returns {void}
 * @private
 */
function writeYAMLConfigFile(config, filePath) {
  debug(`Writing YAML config file: ${filePath}`);

  // lazy load YAML to improve performance when not used
  const yaml = require("js-yaml");

  const content = yaml.safeDump(config, { sortKeys: true });

  fs.writeFileSync(filePath, content, "utf8");
}

async function writeResource (config, resources) {
 const list = {
  apiVersion: 'v1',
  kind: 'List',
  items: resources
 };

 try {
  // Create the directory
  await helpers.createDir(`${config.projectLocation}/${DEFAULT_NODESHIFT_RESOURCE_DIR}`);
  // Now write the json to a file
  await writeFileAsync(`${config.projectLocation}/${DEFAULT_NODESHIFT_RESOURCE_DIR}/openshift.json`, JSON.stringify(list, null, 2), { encoding: 'utf8' });
  // Then write the yaml to a file
  await writeFileAsync(`${config.projectLocation}/${DEFAULT_NODESHIFT_RESOURCE_DIR}/openshift.yaml`, jsyaml.safeDump(list, { skipInvalid: true }), { encoding: 'utf8' });

  logger.info(`openshift.yaml and openshift.json written to ${config.projectLocation}/${DEFAULT_NODESHIFT_RESOURCE_DIR}/`);
 } catch (err) {
  logger.error(`error writing files: ${err}`);
  return Promise.reject(err);
 }

 return list;
}

const saveConfiguration = (version) => {
 const config = {
  version: version,
  mode: cli['--mode'],
  user: cli['--user'],
 }

 return fs.writeFileAsync(configFile, yaml.safeDump(config))
}

[FAKE_DIR]: {
  'migrations': {
    '2018_12_08_02_02.yml': yaml.safeDump(firstFile),
    '2018_12_08_02_03.yml': yaml.safeDump(secondFile)

dumpYamlTemplate() {
  return yaml.safeDump(this.samBuilder.getTemplateObject());
 }

          YAML.safeDump(example, {indent: 2}));
});

const wskManifestString = yaml.safeDump(wskManifestCopy).replace(config.wskManifestPackagePlaceholder, config.owDeploymentPackage)

'.yml': yaml.safeDump,
'.yaml': yaml.safeDump,
'.json': function(data) {

 return yaml.safeDump(fileContent);
})
.then((newData) => {

function toYAML (value) {
 return yaml.safeDump(value, { noRefs: true }).trim()
}