anaysis done

Author: dg92

README.md

@@ -0,0 +1,21 @@
+# Performance-analysis-es6
+**************** Reduce performace check ***************
+reduce: 0.184ms
+for loop: 0.054ms
+for each: 0.151ms
+**************** Map performace check ***************
+map: 0.117ms
+for loop: 0.011ms
+for each: 0.032ms
+**************** Filter performace check ***************
+filter: 0.141ms
+for loop: 0.012ms
+for each: 0.033ms
+**************** Find performace check ***************
+find: 0.097ms
+for: 0.026ms
+for each: 0.029ms
+**************** Wining List Of Performance***************
+1. for  
+2. foreach
+3. map/reduce/filter/find

test.js

@@ -0,0 +1,100 @@
+const posts = [
+    {id: 1, upVotes: 2},
+    {id: 2, upVotes: 18},
+    {id: 3, upVotes: 1},
+    {id: 4, upVotes: 30},
+    {id: 5, upVotes: 50}
+  ];
+
+let sum = 0;
+console.log('**************** Reduce performace check ***************')
+
+console.time('reduce');
+sum = posts.reduce((s, i)=> s+=i.upVotes,0);
+console.timeEnd('reduce')
+
+sum = 0;
+console.time('for loop');
+for(let i=0; i<posts.length; i++) {
+    sum += posts[i].upVotes;
+}
+console.timeEnd('for loop');
+
+sum = 0;
+console.time('for each');
+posts.forEach(element => {
+    sum += element.upVotes;
+});
+console.timeEnd('for each');
+
+console.log('**************** Map performace check ***************')
+let newArray = [];
+
+console.time('map');
+newArray = posts.map(d => d.id+1);
+console.timeEnd('map')
+
+newArray = [];
+console.time('for loop');
+for(let i=0; i<posts.length; i++) {
+    newArray.push(posts[i].id+1)
+}
+console.timeEnd('for loop');
+
+newArray = [];
+console.time('for each');
+posts.forEach(element => {
+    newArray.push(element.id+1)
+});
+console.timeEnd('for each');
+
+console.log('**************** Filter performace check ***************')
+
+newArray = [];
+
+console.time('filter');
+newArray = posts.filter(d => d.upVotes >= 2);
+console.timeEnd('filter')
+
+newArray = [];
+console.time('for loop');
+for(let i=0; i<posts.length; i++) {
+    if(posts[i].upVotes >= 2) {
+        newArray.push(posts[i])
+    }
+}
+console.timeEnd('for loop');
+
+newArray = [];
+console.time('for each');
+posts.forEach(element => {
+    if(element.upVotes >= 2) {
+        newArray.push(element)
+    }
+});
+console.timeEnd('for each');
+
+console.log('**************** Find performace check ***************')
+let obj = {};
+console.time('find');
+obj = posts.find(p => p.id == 5);
+console.timeEnd('find');
+
+console.time('for');
+for(let i=0; i<posts.length; i++) {
+    if(posts[i].id == 5) {
+        obj = posts[i];
+    }
+}
+console.timeEnd('for');
+
+console.time('for each');
+posts.forEach(element => {
+    if(element.id >= 2) {
+        obj = element
+    }
+});
+console.timeEnd('for each');
+
+console.log('**************** Wining List Of Performance***************')
+console.log('for > foreach > map/reduce/filter/find');