array PS completed

Author: maulikk04

ary.js

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+// PS - Chp 5 [array]
+
+//que1
+/*
+let n = prompt("enter length of array")
+let ary = [n]
+for(let i=0;i<n;i++)
+{
+    ary[i] = prompt("enter value in array")
+}
+for(let j=0;j<n;j++)
+{
+    ary[j] = Number.parseInt(ary[j])
+    console.log(ary[j])
+    console.log(typeof ary[j])
+}
+let arr = [1,2,3,4,5]
+let a = prompt("enter a number")
+a = parseInt(a)
+arr.push(a)
+console.log(arr)
+console.log(typeof arr)
+*/
+
+//array sort method
+/*
+let arr=[11,155,9,3,0,5,-5]
+console.log(arr.sort())     //sort alphabettical order
+let compare1 = (a,b) =>{
+    return a-b            //sort assending order
+} 
+
+let compare2 = (a,b) =>{
+    return b-a            //sort desendinf order
+}
+console.log(arr.sort(compare1))
+console.log(arr.sort(compare2))
+*/
+
+//array map method
+/*
+let arr = [1,2,3]
+let a = arr.map((value,index,array) => {
+  console.log(value,index,array)
+  return i+j
+})
+console.log(a)
+*/
+
+//array filter method
+/*
+let arr=[11,12,15,1,5,6]
+let a = arr.filter((value) =>{
+    return value>10
+})
+console.log(a)
+*/
+
+//array reduce method
+/*
+let arr=[1,3,4,5,4,6]
+let add=(a1,a2) => {
+    return a1+a2
+}
+let a = arr.reduce(add)
+console.log(a)
+*/
+
+//que2
+/*
+let ary = [1,2,3,4]
+let a = prompt("enter value in array")
+for(;a!=0;)
+{
+    ary.push(a)
+   a= prompt("enter value in array")
+   if(a==0)
+   {
+      break
+   }
+}
+console.log(ary)
+*/
+
+//que3
+/*
+let ary = [10,15,20,25,30]
+ let a = ary.filter((value)=>{
+    return value%10==0
+})
+console.log(a)
+*/
+
+//que4
+/*
+let ary = [1,2,3,4,5]
+let new_ary = ary.map((a)=>{
+    return a*a
+})
+console.log(new_ary)
+*/
+
+//que5
+/*
+let n = prompt("enter number")
+let ary=[n]
+for(let i=0;i<n;i++)
+{
+     ary[i] = prompt("enter value in array") 
+}
+console.log(ary)
+let fact = ary.reduce((x1,x2)=>{
+    return x1*x2
+})
+console.log("factorial is : " +fact)
+*/
+
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