Nodejs Array First or Null firstOrNull()

Here you can find the source of firstOrNull()

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  5. firstOrNull()

Method Source Code

Array.prototype.firstOrNull = function () {
   if (this.length > 0) {
      return this[0];
   }// w  w  w  .j  a  v  a 2 s .co  m
   return null;   
}

Related

  1. firstOrNull(predicate)
    Array.prototype.firstOrNull = function(predicate){
  var tmp = this.filter(
        (function(){
          var first = true;
          return function(item){
            if(!first) return false;
            if(predicate(item)){
              first = false;
              return true;
...