The reduce and reduceRight methods follow a common operation called
Home | Discussion ForumThe reduce and reduceRight methods follow a common operation called
filter and fold
inject and fold
finger and fold
fold
Answer : B
View More Related Question
1) The reduce and reduceRight methods follow a common operation called
2) Consider the following code snippet : var a = [];
a.unshift(1);
a.unshift(22);
a.shift();
a.unshift(3,[4,5]);
a.shift();
a.shift();
a.shift();
The final output for the shift() is
3) What will happen if reverse() and join() methods are used simultaneously ?
Reverses and stores in the same array
Reverses and concatenates the elements of the array
Reverses
All of the mentioned
View Answer
4) Consider the following code snippet
var a1 = [,,,];
The result would be
var a2 = new Array(3);
0 in a1
0 in a2
5) Consider the following code snippet :
if (!a[i]) continue;
What is the observation made ?
Skips the undefined elements
Skips the non existent elements
Skips the null elements
All of the mentioned
View Answer