Return true if user input matches to predefined string

I working on search function for projects. I have multiple projects with different titles, description and types. What I need is that the function returns true if the project title, description or type contains characters/words from the user input.

E.g.

We have 3 projects:

1. title = 'foo 1', projectType = 'good', description = 'good description'
2. title = 'bar 1', projectType = 'bad', description = 'this is description',
3. title = 'foo bar', projectType = 'neutral', description = 'this is something',

User input is 'foo', returns true for 1. and 3.
User input is 'foo this is', return true for 1. 2. and 3.

I have so far created following function

checkProjectStrings(project: ProjectEntity, filterText: string) {
        let containTextTitle: boolean | undefined;
        let containsTextDescription: boolean | undefined;
        let containsTextType: boolean | undefined;

        const filterTextArray = filterText.split(' ');

        filterTextArray.map(filterTextString => {
            if (project.title != undefined) {
                containTextTitle = project.title.toLowerCase().includes(filterTextString.toLowerCase());
            }
            if (project.description != undefined) {
                containsTextDescription = project.description.toLowerCase().includes(filterTextString.toLowerCase());
            }
            if (project.projectType != undefined) {
                containsTextType = project.projectType.toLowerCase().includes(filterTextString.toLowerCase());
            }
        })

        if (containTextTitle || containsTextDescription || containsTextType) {
            return true;
        }
        return false;
    }

The problem in my function seems that it is always working just with the last string provided

Your code overrides your variables on every iteration. You would need to alter your ifs to not run it if there is a match

if (project.title != undefined && !containTextTitle ) { ... }

You can simply it with some

const filterTextArray = filterText.split(' ');

filterTextArray.some(filterTextString => {
  return (project.title && project.title.toLowerCase().includes(filterTextString.toLowerCase())) || (project.description &&
    containsTextDescription = project.description.toLowerCase().includes(filterTextString.toLowerCase())
  ) ||
  (project.projectType &&
    project.projectType.toLowerCase().includes(filterTextString.toLowerCase())
  )
})

I tried to do it by turning the entire project object into a single string line

const projectsContainingInput = projects
      .filter( project => {
        const projectLine = Object.values(project).join(' ').toLowerCase() // ex. 'facebook social media'
        return words.some(word => projectLine.includes(word))
      })

https://codepen.io/chevallm/pen/qBEpoVg