Sort array against a substring. Used for sorting collection by a search term to show most relevant searches first

sortBySubstring.js

function sortBySubstring (array, term) {
  const func = (a,b) => {
    const subStringA = a.substr(0,term.length)
    const subStringB = b.substr(0,term.length)
    return subStringA.localeCompare(term) - subStringB.localeCompare(term) === 0 ? 1 : -1
  }
  
  return array.sort(func)
}