js_need_functions.js

// use isUnd(var_ , true); = yes undefined; || isUnd(var_ , false); = no undefined;
window.isUnd = function(v_var, v_boo ){
    //v_boo = (v_boo === true) ? true : false;
    var isUnd_regex = /(undefined|NULL|NaN)/i;
    if( isUnd_regex.test(v_var) ){
        if(v_boo) {return true;} else {return false;} //if undefined
    }
        if(v_boo) {return false;} else {return true;} //not undefined
};

//this test
/*
var vot1, vot2 = 'vot2';
if( isUnd(vot1, true) ){  console.log('yes undefined');  } else {  console.log('not undefined');  }
if( isUnd(vot1, false) ){  console.log('not undefined');  } else {  console.log('yes undefined');  }
*/

//getHashNum('#news-id-123') //output 123
window.getHashNum = function(v_var){
  var get_Hash_Num = get_Hash_Num.match(/[\w\W]+(\d+)/i);
  if( get_Hash_Num && get_Hash_Num.length > 1 ){   return get_Hash_Num[1];  }  return false;
};