Array to join member, must reach to the condition of problem-CodePudding

Ask you a favor, thought for a long time all can't think of,

here thank you for your first

CodePudding user response:

Requests for the final number of elements in the array without circulation 50 times no problem, have the requirement is to determine the length of the array

 
Var arr=[]; 
for(var i=0; i<50; I++) {
Var n=parseInt (1 + Math. The random () * 60); 
If (arr. Length==0 | | math.h abs (n - arr (arr. Length - 1)) & gt; {
=3)Arr. Push (n); 
} 
} 
The console. The log (arr);

CodePudding user response:

Hello World, 1/f, reference response:

no requirement to the final number of elements in the array cycle 50 times no problem, if you have any requirements to determine the length of the array
 
Var arr=[]; 
for(var i=0; i<50; I++) {
Var n=parseInt (1 + Math. The random () * 60); 
If (arr. Length==0 | | math.h abs (n - arr (arr. Length - 1)) & gt; {
=3)Arr. Push (n); 
} 
} 
The console. The log (arr); 

(it's even) wow, great, so he can, thank you prawns

CodePudding user response:

Hello World, 1/f, reference response:

no requirement to the final number of elements in the array cycle 50 times no problem, if you have any requirements to determine the length of the array
 
Var arr=[]; 
for(var i=0; i<50; I++) {
Var n=parseInt (1 + Math. The random () * 60); 
If (arr. Length==0 | | math.h abs (n - arr (arr. Length - 1)) & gt; {
=3)Arr. Push (n); 
} 
} 
The console. The log (arr); 

Can you help to add one more condition? There can be no repeat number,

CodePudding user response:

 
Var arr=[], dic={}; 
for(var i=0; i<50; I++) {
Var n=parseInt (1 + Math. The random () * 60); 
If (arr. Length==0 | | (dic [n]==undefined & amp; & Math. Abs (n - arr/arr. Length - 1) & gt; {
=3))Arr. Push (n); 
Dic [n]=0; 
} 
} 
The console. The log (arr);

CodePudding user response:

The

Hello World reference 4 floor, response:

 
Var arr=[], dic={}; 
for(var i=0; i<50; I++) {
Var n=parseInt (1 + Math. The random () * 60); 
If (arr. Length==0 | | (dic [n]==undefined & amp; & Math. Abs (n - arr/arr. Length - 1) & gt; {
=3))Arr. Push (n); 
Dic [n]=0; 
} 
} 
The console. The log (arr);

I found there are wrong, the first floor there, 24 and 25 apart is not greater than or equal to 3, a member of the new and old members individually, must & gt;=3 to add, just didn't notice that...