Day54: Stack

dsa/Day53/index.js

@@ -93,4 +93,4 @@ delete arr[5]
 arr.pop()
 arr.shift()
 arr.splice()
-console.log(arr)
+console.log(arr)

dsa/Day54/stack.js

@@ -0,0 +1,112 @@
+//Stack has 3 operations
+//push: adds value on the top
+//pop : removes value from the top
+//peek: return the top element of stack
+
+//Stack Overflow
+//Stack Undeflow
+
+class Stack{
+    constructor(size){
+        this.data = [];
+        this.size=size;
+    }
+    push(value){
+        if(this.data.length<this.size){
+             this.data.push(value);
+             return this.data.length;
+        }
+        console.log('Stack Overflow')
+        return -1;
+    }
+    pop(){
+        if(this.isEmpty()){
+        console.log("Stack Underflow")
+          return -1;  
+        }
+       return this.data.pop();
+    }
+    peek(){
+        const length = this.data.length;
+        if(this.isEmpty()){
+            console.log("Stack is Empty")
+            return -1;
+        }
+       return this.data[length-1];
+    }
+    isEmpty(){
+       return this.data.length===0;
+    }
+}
+
+const stack = new Stack()
+stack.push(3)
+stack.push(4)
+stack.push(5)
+stack.push(6)
+stack.pop()
+stack.push(10)
+stack.push(12)
+stack.pop()
+stack.push(13)
+
+
+
+console.log(stack.peek())
+
+
+const stack2 = new Stack()
+stack2.push('Rajat')
+stack2.push('Smita')
+stack2.push('Sree')
+stack2.pop()
+stack2.push('Ajay')
+stack2.push('Rajeev')
+stack2.push('Aniket')
+stack2.pop()
+stack2.push('Rahul')
+stack2.push('Varsha')
+stack2.pop()
+stack2.pop()
+
+console.log(stack2.peek())
+
+
+
+
+
+
+
+
+
+const stack3 = new Stack(4)
+
+
+stack.push('Apple')
+stack.push('Banana')
+stack.push('Stawberry')
+stack.push('Guava')
+stack.push('Cherry')
+
+console.log(stack.peek())
+
+
+//reverse an array using stack 
+
+const array = [1,2,3,4,5];
+
+const newStack = new Stack(array.length);
+
+
+
+for(let i=0;i<array.length;i++){
+    newStack.push(array[i])
+}
+
+//traversing on stack
+let arr = [];
+while(!newStack.isEmpty()){
+    const popedValue = newStack.pop();
+    arr.push(popedValue)
+}
+console.log(arr)

javascript/Day51/Tinder/slick/slick.css

@@ -0,0 +1,119 @@
+/* Slider */
+.slick-slider
+{
+    position: relative;
+
+    display: block;
+    box-sizing: border-box;
+
+    -webkit-user-select: none;
+       -moz-user-select: none;
+        -ms-user-select: none;
+            user-select: none;
+
+    -webkit-touch-callout: none;
+    -khtml-user-select: none;
+    -ms-touch-action: pan-y;
+        touch-action: pan-y;
+    -webkit-tap-highlight-color: transparent;
+}
+
+.slick-list
+{
+    position: relative;
+
+    display: block;
+    overflow: hidden;
+
+    margin: 0;
+    padding: 0;
+}
+.slick-list:focus
+{
+    outline: none;
+}
+.slick-list.dragging
+{
+    cursor: pointer;
+    cursor: hand;
+}
+
+.slick-slider .slick-track,
+.slick-slider .slick-list
+{
+    -webkit-transform: translate3d(0, 0, 0);
+       -moz-transform: translate3d(0, 0, 0);
+        -ms-transform: translate3d(0, 0, 0);
+         -o-transform: translate3d(0, 0, 0);
+            transform: translate3d(0, 0, 0);
+}
+
+.slick-track
+{
+    position: relative;
+    top: 0;
+    left: 0;
+
+    display: block;
+    margin-left: auto;
+    margin-right: auto;
+}
+.slick-track:before,
+.slick-track:after
+{
+    display: table;
+
+    content: '';
+}
+.slick-track:after
+{
+    clear: both;
+}
+.slick-loading .slick-track
+{
+    visibility: hidden;
+}
+
+.slick-slide
+{
+    display: none;
+    float: left;
+
+    height: 100%;
+    min-height: 1px;
+}
+[dir='rtl'] .slick-slide
+{
+    float: right;
+}
+.slick-slide img
+{
+    display: block;
+}
+.slick-slide.slick-loading img
+{
+    display: none;
+}
+.slick-slide.dragging img
+{
+    pointer-events: none;
+}
+.slick-initialized .slick-slide
+{
+    display: block;
+}
+.slick-loading .slick-slide
+{
+    visibility: hidden;
+}
+.slick-vertical .slick-slide
+{
+    display: block;
+
+    height: auto;
+
+    border: 1px solid transparent;
+}
+.slick-arrow.slick-hidden {
+    display: none;
+}