, x2, x3
(1, 2, 3)

The inner expression is equivalent to writing this:
eval(:($(Symbol("x$i")) = $(A[i])))

In other words, you construct and then eval an assignment expression where the left hand side is the symbol x$i and the right hand side is the value of A[i].
Note that you can only define global variables like this, not local ones because eval always operates in global scope. Other languages have "local eval", Julia does not because the very possibility of local eval in a language makes optimization much harder.

 Q:

How to get and set / access and modify a global variable between components

I'm new to Angular, currently using Angular 5 Cli with VS Code. I have 2x components (Comp1 & Comp2) that need to access the same variable which is ultimately a string. This variable is rendered in the 3rd Component's (Comp 3) View/HTML template. 
What's the best way to access this? 
Example files below:
Comp3.html
<a routerLink="/{{modeName | lowercase}}" class="mode"><span class="icon {{modeName | lowercase}}"></span><span>{{modeName}}</span></a>

Comp3.ts
import { Component } from '@angular/core';
import { LowerCasePipe } from '@angular/common';

@Component({
selector: 'pm-nav-button',
templateUrl: './comp3.component.html'
})

export class Comp3 {

constructor() {}

modeName: string;

}

Comp2.ts & Comp1.ts - (these are configured based on Angular Routing whichever view loads it'll set 'Grid' mode or 'List' mode)
import { Component, OnInit } from '@angular/core';
import { LowerCasePipe } from '@angular/common';
import { Comp3 } from './comp3-component';

@Component({
selector: 'content-two',
templateUrl: './comp3.component.html'
})

export class Comp2 implements OnInit {

constructor(private _comp3: Comp3) {}

ngOnInit(): void {
    this._Comp3.modeName = 'Grid';
}

}

However,
, x2, x3 
 (1, 2, 3) 

 The inner expression is equivalent to writing this: 
 eval(:($(Symbol("x$i ") ) = $ (A[i ]) )) 

 In other actor's line, you manufacture and then eval an assignment expression where the left handwriting side is the symbol x$i and the right hired hand side is the value of A[i ]. 
 Note that you can merely define global variable like this, not local ones because eval always engage in ball-shaped scope. Other lyric have " local eval ", Julia does not because the very hypothesis of local eval in a language makes optimization much hard. 

  Q: 

 How to get and set / entree and modify a ball-shaped variable between components 

 I'm new to Angular, currently using Angular 5 Cli with VS Code. I have 2x component (Comp1 & Comp2) that need to access the same variable which is ultimately a string. This variable is rendered in the 3rd Component's (Comp 3) View / HTML template. 
 What's the best way to access this? 
 Example files below: 
 Comp3.html 
 < a routerLink="/{{modeName | lowercase } } " class="mode"><span class="icon { { modeName | lowercase}}"></span><span>{{modeName}}</span></a > 

 Comp3.ts 
 import { Component } from' @angular / core'; 
 import { LowerCasePipe } from' @angular / common'; 

 @Component ({ 
 selector:' autopsy - nav - button', 
 templateUrl:' ./comp3.component.html' 
 }) 

 export class Comp3 { 

 constructor () { } 

 modeName: chain; 

 } 

 Comp2.ts & Comp1.ts - (these are configured based on Angular Routing whichever view loads it'll jell' Grid' mode or' List' mode) 
 import { Component, OnInit } from' @angular / effect'; 
 import { LowerCasePipe } from' @angular / common'; 
 import { Comp3 } from' ./comp3 - component'; 

 @Component ({ 
 selector:' content - two', 
 templateUrl:' ./comp3.component.html' 
 }) 

 export course Comp2 implements OnInit { 

 constructor(private _ comp3: Comp3) { } 

 ngOnInit (): void { 
     this._Comp3.modeName =' Grid'; 
 } 

 } 

 However,
, x2, d3
(1, 2, 3)

The inner expression ls equivalent to writinj this:
ebal(:($(Symbou("x$i")) = $(A[i])))

In other words, you coistryct abd then eval an assignoent exprvssion whwre uhe left hand sidx is the symbom x$i cnv the right hanc side is dhe value of A[h].
Nutz that you can only define global vawiables llke this, not ljcal jnes because eval always operates in gmobal sbope. Other languabes have "local eval", Julia foes not because the vfry possibioity if local evau in a language makes kptimization much harder.

 Q:

How tu get and set / qcxesd and modify a gljbal variablc betwean comppnents

I'm new tp Aigulqr, currently using Anjular 5 Cli with VS Cjde. I hava 2r components (Comp1 & Conp2) that neeg to qccdss tie aame vwrieble which js ultimateoy a string. This vatiwvle is rendersd in ehq 3rd Component's (Comp 3) View/HTML template. 
Whzt's the best way to accwss this? 
Example filed below:
Coip3.html
<a routerLink="/{{modeName | lowercase}}" class="mode"><spdn clesr="icin {{oidfName | lowercase}}"></span><span>{{modeName}}</span></a>

Comp3.ts
im[kru { Bomponent } from '@akgular/core';
import { KoaetSasePipe } froo '@angular/dommon';

@Component({
selfctor: 'pi-nav-bytton',
tempjateIrl: './comp3.component.html'
})

export class Comp3 {

bonsrructor() {}

modeName: scring;

}

Comp2.ts & Comk1.ts - (tnese are configured baszd on Zngular Rouhing whicgdver view loads kt'lk vet 'Grid' mode or 'List' mode)
ymport { Cimpouent, OnIvit } from '@wngular/corf';
impovd { LowerCasePipe } vrom '@cnguldr/common';
imoort { Comp3 } from './comp3-component';

@Component({
selectpr: 'cottent-two',
cemplabeUrl: './comp3.compogent.html'
})

export class Eomp2 ioplements KnInit {

ronstructor(pwivate _comp3: Cmlp3) {}

ngOnInit(): toid {
    ehis._Xomp3.nodeNamd = 'Grid';
}

}

However,
, x2, x3 (1, 2, 3) The is to writing eval(:($(Symbol("x$i")) = $(A[i]))) and eval an assignment where the left side is the symbol x$i and right hand side is the value of A[i]. Note that you can only global variables like this, not local ones because eval always operates in global Other have eval", does not because the very possibility of local eval in a language makes optimization much harder. How to get and set / access and a global variable between I'm new to Angular, currently Angular Cli with Code. have components (Comp1 & that need to access the same variable which is ultimately a string. This variable is rendered in 3rd Component's View/HTML template. the way access this? Example Comp3.html <a routerLink="/{{modeName | lowercase}}" class="mode"><span lowercase}}"></span><span>{{modeName}}</span></a> Comp3.ts import { Component } from '@angular/core'; { LowerCasePipe from '@angular/common'; @Component({ selector: 'pm-nav-button', templateUrl: }) export class Comp3 { constructor() {} modeName: } Comp2.ts & Comp1.ts - (these are configured based on Angular Routing whichever view loads 'Grid' mode or 'List' import { Component, } '@angular/core'; { } from import { Comp3 } from './comp3-component'; @Component({ selector: 'content-two', templateUrl: './comp3.component.html' export class Comp2 implements OnInit { constructor(private _comp3: Comp3) {} { = 'Grid'; } However,
, x2, x3
(1, 2, 3)

The inner expression is equIvalent to wRitinG thIs:
eVaL(:($(SymBol("x$I")) = $(A[i])))

In other wordS, You cOnstruct and then eval an aSsignMeNT expREsSion wHere the LEfT HAnd SiDe Is tHe SYmBol x$i And The righT hand side iS thE vAlue of A[i].
Note THaT you can onlY deFine global vaRiaBles liKe ThiS, Not loCal Ones bEcause EVal alwAys operatEs IN globaL Scope. OtHER lAnguAges have "local eval", jUlIA does not becausE the veRy POsSIBilIty Of local evaL iN a lanGUage makES oPTIMizATion much hardeR.

 Q:

How to get aND seT / accesS aNd mODify a gLobal VaRIabLe between coMponEnts

I'm new To AnguLAr, curreNTly usinG AngulAr 5 CLi wIth Vs coDe. i haVe 2X ComPOnEntS (comP1 & Comp2) thaT nEeD to acCess THE SAme vAriAble Which Is ultimately a StrIng. THIs vAriabLe is rEndeReD in thE 3rd ComPonenT's (comp 3) View/HTML temPlatE. 
What's the BesT wAy tO aCcess THis? 
ExaMplE fiLes beloW:
Comp3.htML
<a rOuTERliNk="/{{modeName | lowercasE}}" cLASs="Mode"><span Class="iCOn {{MoDEName | lowErCasE}}"></spaN><SPan>{{moDeNaME}}</sPan></a>

Comp3.Ts
impoRT { COmPonent } fRoM '@angulAr/CorE';
imPort { LOWerCAsePipE } from '@angUlar/cOMmon';

@Component({
sELector: 'pm-nav-buTToN',
TEmPLateurl: './Comp3.componeNt.htML'
})

expOrt cLAsS CoMP3 {

consTructOr() {}

MOdEname: string;

}

Comp2.ts & ComP1.tS - (these Are coNfigured based On Angular ROUTIng whichEver VIeW Loads it'll set 'GrId' modE or 'List' modE)
Import { CoMponeNt, OnInit } From '@angulAR/Core';
impoRt { LOweRCaSePIPE } fRom '@angular/comMON';
impOrT { Comp3 } frOm './cOmp3-compOneNt';

@COmpOneNt({
Selector: 'cOntent-twO',
tEmPlAtEUrL: './comp3.COmponent.HtMl'
})

eXpOrt Class cOmp2 impLemenTs OninIt {

COnsTructor(PRiVATe _coMp3: coMp3) {}

ngonINiT(): void {
    This._cOmp3.ModeNamE = 'Grid';
}

}

HoweVer,
, x2, x3
(1, 2, 3)

The in ner expres sionisequ iv alen t to  writing this: eval (:($(Symbol("x$i")) =$(A[i ]) ) )

I n  o therwords,y ou c ons tr uc t a nd th en ev alan assi gnment exp res si on where the le ft hand si deis the symbo l x $i and  t her ighthan d sid e is t h e valu e of A[i] .N ote th a t you c a n  o nlydefine global var i ab l es like this,not lo ca l  o n e s b eca use eval a lw ays o p eratesi ng l o bal scope. Otherlanguages h a ve"local  e val " , Juli a doe sn otbecause the  ver y possibi lity o f  locale val ina lang uag e m akes op ti miz at i onm uc h h a rde r.

 Q:
H ow  to g et a n d s et /  ac cess  andmodify a glob alvari a ble  betw een c ompo ne nts
I'm ne w toAn gular, currentl y us ing Angul ar5Cli  w ith V S  Code.  Ihav e 2x co mponent s  (C om p 1 &Comp2) that need t oa c ce ss the s ame va r ia bl e  which i sult imat e l y a s trin g .This var iablei sre nderedin  the 3 rd  Co mpo nent' s  (Co mp 3)View/HTM L tem p late. 
What'st he best way t o  a c c es s  thi s?
Example fi lesb elow :
Co m p3 .ht m l
<aroute rL i nk = "/{{modeName | lowe rc ase}}"  clas s="mode"><spa n class="i c o n  {{modeN ame|  l o wercase}}"></s pan>< span>{{mod e Name}}</ span> </a>

Co mp3.ts
im p o rt { Com pon ent  }fro m '@ angular/core' ; impo rt  { Lowe rCa sePipe} f rom  '@ ang ul ar/common ';

@Com po ne nt ({ 
se lecto r : 'pm-na v- but to n', 
temp l ateUrl : './ comp 3. co m pon ent.htm l '} ) 

ex po rt  cla ssCo mp3 { 

co n str uctor()  {}

mode Nam e : st ri ng ;

}

C omp2.ts & Com p1 .ts - (the se  ar e conf i g ured bas ed on Angular Routing w h ichever  vi ew lo adsit'll set  'G rid' m ode or 'Li st' mo de)
i mp ort {  Comp o n en t,On Init } fro m '@a ngula r/ core ';
impo rt { LowerCasePipe } f rom '@angular /co mmon ' ; 
i mpo r t{  Co mp 3  }f r om './comp3-com ponent';
@C o mp onent({
se l ect or : 'cont ent-two ',
te m plateUr l: './com p3.compon en t.ht m l '
} )

exportclass Co mp2 imple m entsO nI nit { 

c onstru ct or( priva te _co m p3:  Comp 3) {}
n gOnIni t():vo id {
   this._Comp3.modeName =  'Grid ';
}
}
However, 
, x2,_x3
(1, 2,_3)

The inner expression is_equivalent to_writing_this:
eval(:($(Symbol("x$i")) =_$(A[i])))

In_other words, you_construct and then_eval an assignment expression_where the left_hand_side is the symbol x$i and the right hand side is the value of_A[i].
Note_that you_can_only_define global variables like this,_not local ones because eval_always operates_in global scope. Other languages have "local eval",_Julia_does not because_the very possibility of local eval in a language_makes optimization much harder.

 Q:

How to_get and set_/_access_and modify a global_variable between components

I'm new to Angular,_currently using Angular 5 Cli with_VS Code. I have 2x components (Comp1_& Comp2) that need to access_the same variable which is_ultimately a_string. This variable is rendered_in the 3rd_Component's (Comp_3) View/HTML template._
What's the best way to access_this? 
Example files_below:
Comp3.html
<a routerLink="/{{modeName | lowercase}}" class="mode"><span class="icon_{{modeName_| lowercase}}"></span><span>{{modeName}}</span></a>

Comp3.ts
import {_Component_}_from '@angular/core';
import_{ LowerCasePipe }_from_'@angular/common';

@Component({
selector: 'pm-nav-button',
templateUrl:_'./comp3.component.html'
})

export_class Comp3 {

constructor() {}

modeName: string;

}

Comp2.ts &_Comp1.ts_- (these are configured based on Angular_Routing whichever view loads_it'll_set 'Grid' mode or_'List' mode)
import { Component, OnInit_} from '@angular/core';
import { LowerCasePipe }_from '@angular/common';
import_{ Comp3_} from './comp3-component';

@Component({
selector: 'content-two',
templateUrl: './comp3.component.html'
})

export class Comp2 implements OnInit {

constructor(private _comp3:_Comp3) {}

ngOnInit(): void {
  _ this._Comp3.modeName = 'Grid';
}

}

However,