array map, filter, find, reduce, with for, for-of, forEach loop

Author: codewithghan

array_phase2.js

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+
+
+// for-loop
+// for(let i=0; i<=numberArray.length; i++ ){
+//     console.log(i, numberArray[i]);
+// }
+
+// for-of
+// for(elem of numberArray) {
+//     console.log(elem);
+// }
+
+// forEach loop
+// numberArray.forEach(ele => {
+//      console.log(ele, "foreach");
+// });
+
+// map
+const numberArray = [10,20,30,40];
+const newArr = numberArray.map((ele)=> {
+    return ele*2;
+});
+// console.log(numberArray);
+// console.log(newArr);
+
+// filter array
+const numberArrayfilter = [10,20,30,40];
+const newArrfil = numberArrayfilter.filter((ele)=> {
+    return ele > 20;
+});
+// console.log(numberArrayfilter);
+// console.log(newArrfil);
+
+const numberArrayfind = [10,20,30,40];
+const newArrfind = numberArrayfind.find((ele)=> {
+    return ele > 20;
+});
+// console.log(numberArrayfilter);
+// console.log(newArrfind);
+
+
+
+const myArr = [1,2,3,4];
+// let sum = 0;
+// myArr.forEach((res)=>{
+//    sum = sum + res;
+// });
+// Reduce Method
+const reduceArray  = myArr.reduce((sum, res) => {
+      return sum + res;
+},0);
+
+// console.log(reduceArray);