Function indexOf

mini-code-edit/cm/lib/codemirror.js:3020–3025

(collection, elt)

  }

  function indexOf(collection, elt) {
    if (collection.indexOf) return collection.indexOf(elt);
    for (var i = 0, e = collection.length; i < e; ++i)
      if (collection[i] == elt) return i;
    return -1;
  }
  function isWordChar(ch) {
    return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
  }