 called using this.callParent(arguments).
I would like to know where this arguments variable (I know it can be args or a or arg too) is defined, and where its value is assigned.
For example, if I define my class as follows:
Ext.define('shekhar.MyWindow', {

  extend : 'Ext.Window',
  title : 'This is title',

  initComponent : function() {
    this.items = [
      // whatever controls to be displayed in window
    ];

    // I have not defined argument variable anywhere
    // but still ExtJS will render this window properly without any error
    this.callParent(arguments);
  }

});

Does anyone know where this arguments variable is defined, and how values are assigned to it?

A:

The arguments variable is a special variable in Javascript, available within any function. It's not a true array, but it contains the argument values passed to the function which can be accessed like array elements (so, arguments[0] is the first argument, arguments[1] is the second, and so on).
Check out this page on the Mozilla Developer Network for more information and examples.

 Q:

MySQL: Which join is better between left outer join and inner join

Which join is better peforming if all of them provides the same result?
For example, I have a two tables employees(emp_id,name, address, designation, age, sex) and work_log(emp_id,date,hours_wored). To get some specific results both inner join and left join gives the same result. But, I have still some doubts which is not limited to this question only.

which join is more efficient which should prefer in case of same result values?
What are other factors which must be considered at the time of applying join?
Is there any relationship between inner join and cross join?

A:

There is not a "better" or a "worse" join type. They have different meaning and they must be used depending on it.
In your case, you probably do not have employees with no work_log (no rows in that table), so LEFT JOIN and JOIN will be equivalent in results. However, if you had such a thing (a new employee with no registered work_log), a JOIN wold omit that employee, while a left join
called using this.callParent(arguments). 
 I would like to know where this arguments varying (I acknowledge it can be args or a or arg too) is defined, and where its value is impute. 
 For exemplar, if I define my class as surveil: 
 Ext.define('shekhar. MyWindow', { 

   extend:' Ext. Window', 
   title:' This is championship', 

   initComponent: function () { 
     this.items = [ 
       // whatever controls to be display in window 
     ]; 

     // I have not defined argumentation variable star anywhere 
     // but still ExtJS will render this windowpane properly without any mistake 
     this.callParent(arguments); 
   } 

 }); 

 Does anyone acknowledge where this arguments variable is defined, and how value are assigned to it? 

 A: 

 The arguments variable is a special variable star in Javascript, available within any function. It's not a on-key array, but it contains the argument values pass to the function which can be accessed like array elements (so, arguments[0 ] is the first controversy, arguments[1 ] is the second, and so on). 
 Check out this page on the Mozilla Developer Network for more information and examples. 

  Q: 

 MySQL: Which join is better between left outer join and inside articulation 

 Which join is well peforming if all of them provide the same result? 
 For example, I accept a two tables employees(emp_id, name, address, designation, age, sexual activity) and work_log(emp_id, date, hours_wored). To get some specific results both inner join and left join gives the same result. But, I have still some doubts which is not specify to this question merely. 

 which join is more efficient which should prefer in case of same resultant role values? 
 What are other factors which must be consider at the fourth dimension of applying join? 
 Is there any kinship between inner join and cross join? 

 A: 

 There embody not a " better " or a " bad " join character. They have different meaning and they must be use depending on it. 
 In your case, you credibly do not have employees with no work_log (no rows in that table), so LEFT JOIN and JOIN will be equivalent in results. However, if you had such a thing (a new employee with no registered work_log), a JOIN wold omit that employee, while a left join
 capled using this.callParenu(arguments).
I would like tm know where tfis arguments variable (I knox it can ve args or a or arg tou) is defijed, and qhert its value is assigned.
Fov exajile, iy M define my claxs as follmws:
Ext.define('shakfax.MyWindow', {

  extend : 'Ext.Window',
  title : 'This os title',

  initCoipontnt : fuhbtlon() {
    this.items = [
      // whatevsr contgols to be displaued in window
    ];

    // I hage nlt defined argumenh variable qnywrwre
    // but rtill ExtJS will rendet this window properly without avy erxor
    this.xaolPwtent(argumentw);
  }

});

Dovs anyone know where dhis arbuments variabke ms dwfined, and how values are assigned to ij?

A:

The argukeuts variable is a spexiql vatiabla in Havxscdi't, zvailahle within ang function. Ut's not a true arrau, fly it containa the wrdument values passed to the function whpch dan be accessed like areay elements (so, argumgnts[0] is thq first argument, arguments[1] is the second, and so ot).
Checi ouu bmis oqgf on the Mozilla Developer Network for more igrotmstion and examiles.

 Q:

MySQL: Which koln ys better betdeen lzrt outer join and injer joig

Whicy join is betyer peforming if all of then provides tke wame result?
For exalple, I have a teo tanles employees(emp_id,name, adddess, designwtion, age, rex) and work_log(eop_ic,ddte,hours_wored). To get some fpecific cesulcs both knnet join wnd left jlin glees the same resulh. But, I have stilp some doubts which is not limivxd to this qugsthon only.

whieh joik is more efficyent which shoold prefex in cxse of samv result talues?
What awe other factmts which must be consyderwd ar the tkoe of applying join?
Is tktre any reoationship between invsr join and crows hoin?

A:

There is npt x "bqtner" ow a "worse" joit tyoe. Gney hxve differekt oeanong and they must be uses depending on it.
Im nour case, you profably do not nave employees witj no xork_loj (no rpws in that table), so LEFT JOIN ans JOIN wipl ne equivalent in vesujts. Howevex, if you had such a thing (a new employee with no registergd work_log), a JOIN wolb pmit that ekployqe, while d left join
called using this.callParent(arguments). I would like to this variable (I it can be too) defined, and where value is assigned. example, if I define my class follows: Ext.define('shekhar.MyWindow', { extend : 'Ext.Window', title : 'This is title', initComponent : { this.items = [ // whatever controls to be displayed in window ]; I not argument anywhere // but still ExtJS will render this window properly without any error this.callParent(arguments); } }); anyone know where this arguments variable is defined, how values are assigned it? A: The arguments variable a variable in available any It's not a array, but it contains the argument values passed to the function which can be accessed like array (so, arguments[0] first argument, is second, so on). Check page on the Mozilla Developer Network and examples. Q: MySQL: Which join is better left outer and inner join Which join is peforming if all of them provides the same For example, I have a two tables employees(emp_id,name, address, designation, age, sex) and work_log(emp_id,date,hours_wored). To specific results both inner and left join the result. I still some which is not limited to this question only. which join is efficient which should prefer in case of same result values? other which must be at the time of join? there any relationship between and join? not "better" a "worse" join type. have different meaning and they be used depending on probably do not have employees with no work_log rows in that table), so LEFT JOIN JOIN will be equivalent in results. However, if you had such a (a new no registered work_log), a JOIN wold omit that while a left join
 called using this.callParent(Arguments).
I Would LikE to KnOw whEre tHis arguments vaRIablE (I know it can be args or a or Arg toO) iS DefiNEd, And whEre its vALuE IS asSiGnEd.
FOr EXaMple, iF I dEfine my Class as folLowS:
EXt.define('shekHAr.myWindow', {

  exTenD : 'Ext.Window',
  tiTle : 'this is TiTle',

  INitCoMpoNent : fUnctioN() {
    This.itEms = [
      // whatevEr COntrolS To be disPLAyEd in Window
    ];

    // I have not defINeD Argument variabLe anywHeRE
    // bUT StiLl EXtJS will reNdEr thiS Window pROpERLY wiTHout any error
    tHis.callPareNT(arGumentS);
  }

});

DOes ANyone kNow whErE ThiS arguments vAriaBle is defiNed, and HOw valueS Are assiGned to It?

A:

the ArguMEnTs VarIaBLe iS A sPecIAl vAriable iN JAvAscriPt, avAILABle wIthIn anY funcTion. It's not a trUe aRray, BUt iT contAins tHe arGuMent vAlues pAssed To The function whicH can Be accesseD liKe ArrAy ElemeNTs (so, arGumEntS[0] is the fIrst argUMenT, aRGUMeNts[1] is the second, and sO oN).
cHeCk out thiS page oN ThE MOZilla DevElOpeR NetWORk for More INfOrmation And exaMPlEs.

 q:

MySQL: WHiCh join Is BetTer BetweEN lefT outer Join and iNner jOIn

Which join is bETter peforming IF aLL Of THem pRovIdes the same ResuLT?
For ExamPLe, i haVE a two TableS eMPlOYees(emp_id,name, addresS, dEsignaTion, aGe, sex) and work_lOg(emp_id,datE,HOUrs_wored). to geT SoME specific resulTs botH inner join ANd left joIn givEs the samE result. BuT, i Have stilL soMe dOubTs wHICh Is not limited tO THis qUeStion onLy.

wHich joiN is MorE efFicIeNt which shOuld prefEr In CaSe Of sAme reSUlt valueS?
WHat ArE otHer faCTors whIch muSt be CoNsIDerEd at the TImE OF appLyInG joiN?
Is ThEre anY relATioNship beTween inneR joIN and CrOsS join?

A:

THere is not a "betTeR" or a "worse" jOiN tyPe. They HAVe differEnt meaning and they must be USed depeNdiNg on iT.
In yOur case, yoU prObably Do nOT have eMployeEs witH nO woRK_Log (no ROWs In tHaT table), so LEft jOIn and JoIn wilL be equiValent in results. HowEVer, If you had such a ThiNg (a nEW EmPloYEe WIth No REgiSTEred work_log), a JOIn wold omit tHaT EmPloyee, whilE A leFt Join
 called using this.callPar ent(argume nts). 
Iwou ld  lik e to  know where th i s ar guments variable (I kn ow it  c a n be ar gs or  a or a r gt o o)is  d efi ne d ,and w her e its v alue is as sig ne d.
For examp l e,  if I defi nemy class asfol lows:Ex t.d e fine( 'sh ekhar .MyWin d ow', { 

  exten d:  'Ext. W indow',  t itle  : 'This is title ' ,  initComponen t : fu nc t io n ( ) { 
   this.ite ms  = [     // wh a t e ver controls to b e displayed inwindow 
  ] ;

   // I  h a venot defined  arg ument var iablea nywhere     //but st ill  Ex tJSw il lren de r  th i swin d owproperly  w it houtanye r r o r
   t his. callP arent(argumen ts) ;
 } 

} );

D oes a nyon eknowwherethisar guments variabl e is  defined,  an dhow  v alues are as sig ned  to it? 

A:

T h e a rg u m e nt s variable is a sp ec i a lvariable  in Ja v as cr i pt, avai la ble  wit h i n any  fun c ti on. It's  not a tr ue  array,  b ut itco nta ins  thea rgum ent va lues pas sed t o  the functionw hich can be a c ce s s ed like  ar ray element s (s o , ar gume n ts [0] is th e fir st ar g ument, arguments[1]  i s thesecon d, and so on) .
Check ou t t his page  ont he Mozilla Develo per N etwork for more inf ormat ion andexamples.  Q:

MyS QL:  Wh ich  jo i n  i s better betw e e n le ft  outerjoi n and i nne r j oin 

W hi ch join i s better  p ef or mi ngif al l  of them  p rov id esthe s a me res ult?Forex am p le,  I have at w o ta bl es  emp loy ee s(emp _id, n ame , addre ss, desig nat i on,ag e,  sex) a nd work_log(e mp _id,date,h ou rs_ wored) . To get s ome specific results bo t h inner  jo in an d le ft join g ive s thesam e  resul t. But , I h av e s t i ll so m e  d oub ts  which isn o t l imite dto t his que stion only.

which joi n is more eff ici entw h ic h s h ou l d p re f eri n  case of same r esult valu es ? 
W hat are ot h erfa ctors w hich mu st be conside red at th e time of  a pply i n g j oin?
Is th ere anyrelations h ip be t we en in ner  joinan d c rossjoin?A:
Ther e is n ot  a "be tter"  o r a "wor se" join type. They hav e diff erent  me aning and  th e y m ust be us ed d epending o n i t.In yo urc ase,youp ro bab l y donoth ave emplo y ee s w i t hno work_log ( n o r ows i n t h at tab le),  so LEFT JOIN and JOIN will be e quiv a l ent  in resu lt s. However, if  yo uh a d such a  t hing (a new  employe ew ith n o regi stered  work_l o g ), a JOIN  wol d o mit thatemp lo y ee, whi le  a left j oin
 called_using this.callParent(arguments).
I_would like to know_where this_arguments_variable (I_know_it can be_args or a_or arg too) is_defined, and where_its_value is assigned.
For example, if I define my class as follows:
Ext.define('shekhar.MyWindow', {

  extend_:_'Ext.Window',
 _title_:_'This is title',

  initComponent_: function() {
  _ this.items_= [
      //_whatever_controls to be_displayed in window
    ];

  _ // I have not defined_argument variable anywhere
___ // but still_ExtJS will render this window properly_without any error
   _this.callParent(arguments);
  }

});

Does anyone know where this_arguments variable is defined, and how_values are assigned to it?

A:

The_arguments variable_is a special variable in_Javascript, available within_any function._It's not a_true array, but it contains the_argument values passed_to the function which can be_accessed_like array elements_(so,_arguments[0]_is the_first argument, arguments[1]_is_the second,_and_so on).
Check out this page on_the_Mozilla Developer Network for more information and_examples.

 Q:

MySQL: Which join_is_better between left outer_join and inner join

Which join_is better peforming if all of_them provides_the same_result?
For example, I have a two tables employees(emp_id,name, address, designation, age,_sex) and work_log(emp_id,date,hours_wored). To get some_specific results both inner_join and_left_join gives the_same_result. But,_I have still some doubts which is_not limited_to this question only.

which join is_more efficient which should_prefer_in case of same result values?
What_are other factors which must be_considered at the time of_applying_join?
Is_there any relationship between inner_join and cross join?

A:

There is not_a "better" or_a "worse" join type. They have different_meaning_and they must be used depending_on_it.
In your case, you probably do_not_have_employees with no work_log (no_rows in that table), so LEFT_JOIN and JOIN will be equivalent in results. However,_if you had_such a thing (a new_employee_with_no registered work_log), a JOIN wold omit that employee, while_a left_join