How to get an specific value (with regex) of this array?-CodePudding

Use case :

This is a Cypress E2E test coded with JS and I'm trying to apply a regex filter to this array (more than 100 values) to be able to ignore everything before /flux/sitemaps/ and catches only the .xml file names. my aim is to be able to compare pre-production and production sitemap URL contents.

One example of what I would like to achieve :

Before regex :

["https://xxxxxxxxx.com/flux/sitemaps/sitemap_cms_1.xml","https://xxxxxx.com/flux/sitemaps/sitemap_category_1.xml"]

After regex (test goal) :

["/flux/sitemaps/sitemap_cms_1.xml","/flux/sitemaps/sitemap_category_1.xml"]

["sitemap_cms_1.xml","sitemap_category_1.xml"]

I've tried different regex rules but no success so far, any help is greatly appreciated.

CodePudding user response：

The regex would be /\/flux\/sitemaps\/.*/ for first match, or /\/flux\/sitemaps\/(.*)/ with capturing group (second match).

const sitemap = [
  'https://xxxxxxxxx.com/flux/sitemaps/sitemap_cms_1.xml',
  'https://xxxxxx.com/flux/sitemaps/sitemap_category_1.xml'
]

const expected1 = [
  '/flux/sitemaps/sitemap_cms_1.xml',
  '/flux/sitemaps/sitemap_category_1.xml'
]

cy.wrap(sitemap)
  .then(sm => sm.map(url => url.match(/\/flux\/sitemaps\/.*/)[0]))
  .then(console.log)
  .should('deep.eq', expected1)


const expected2 = [
  'sitemap_cms_1.xml',
  'sitemap_category_1.xml'
]

cy.wrap(sitemap)
  .then(sm => sm.map(url => url.match(/\/flux\/sitemaps\/(.*)/)[1]))
  .then(console.log)
  .should('deep.eq', expected2)

CodePudding user response：

You can use Array.map to create a new array populated with the results of another function on the existing array. In this case, we'll use Array.split to remove everything before /flux/sitemaps, and then use string interpolation to add the /flux/sitemaps back on.

const origArr = ["https://xxxxxxxxx.com/flux/sitemaps/sitemap_cms_1.xml","https://xxxxxx.com/flux/sitemaps/sitemap_category_1.xml"]

const newArr = origArr.map((x) => `/flux/sitemaps${x.split('/flux/sitemaps')[1]}`);