docs(forms): correct sample code for FormArray.reset (#42477)
docs(forms): correct sample code for FormArray.reset (#42477)

Remove unexpected this, correct output comment for arr.value and correct parameter type for FormArray.get().

PR Close #42477

shairez/angular,mgechev/angular,gkalpak/angular,mgechev/angular,angular/angular,JiaLiPassion/angular,gnomeontherun/angular,mgechev/angular,mgechev/angular,shairez/angular,brandonroberts/angular,angular/angular,ocombe/angular,angular-indonesia/angular,ocombe/angular,ocombe/angular,angular-indonesia/angular,JiaLiPassion/angular,ocombe/angular,brandonroberts/angular,manekinekko/angular,angular-indonesia/angular,ocombe/angular,brandonroberts/angular,mgechev/angular,shairez/angular,gkalpak/angular,gkalpak/angular,shairez/angular,manekinekko/angular,manekinekko/angular,angular/angular,JiaLiPassion/angular,brandonroberts/angular,gnomeontherun/angular,manekinekko/angular,manekinekko/angular,shairez/angular,angular-indonesia/angular,gkalpak/angular,gnomeontherun/angular,angular/angular,brandonroberts/angular,gnomeontherun/angular,manekinekko/angular,ocombe/angular,brandonroberts/angular,JiaLiPassion/angular