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In HTML, is used to create buttons in an HTML form. Inside the tag, you can place content like text or images. But, this is not the case with the buttons created with tag.Let’s see an example of button and ,HTML tagIt is used for creating a button within an HTML form and inside the tag, you can place content like text or images.The following will add an image to a button −ExampleYou can try to run the following code to add an image to a button using the tag − ... Read More
The autocomplete attribute is used with form element to set the autocomplete feature on or off. If the autocomplete feature is on, the browser will automatically show values, based on what users entered before in the field. If the autocomplete feature is off, the browser won’t automatically show values, based on what users entered before in the field.The following are the attribute values −S. NoAttribute ValueDescription1onThis is the default value. Browser automatically complete values based on what users entered before.2offBrowser won’t complete values based on what users entered before. Users have to type the value.Let’s see how to turn off autocompletion in ... Read More
Let us set up a simple class that we'll use to define all these methods on. We'll create a container object to store the hash table and create a display function to display the table. Note that for collision resolution, we'll use chaining.The display function takes each entry (hashed value) in the table and prints all pairs associated with it.ExampleWe'll also create a new class on the prototype to store the key-value pairs.class HashTable { constructor() { this.container = []; // Populate the container with empty arrays // which can ... Read More
When adding elements to a hash table the most crucial part is collision resolution. We're going to use chaining for the same. There are other algorithms you can read about here: https://en.wikipedia.org/wiki/Hash_table#Collision_resolutionNow let's look at the implementation. We'll be creating a hash function that'll work on integers only to keep this simple. But a more complex algorithm can be used to hash every object − Exampleput(key, value) { let hashCode = hash(key); for(let i = 0; i < this.container[hashCode].length; i ++) { // Replace the existing value with the given key ... Read More
We've kind of already implemented this in our put method. Let us look at it again in isolation.Exampleget(key) { let hashCode = hash(key); for(let i = 0; i < this.container[hashCode].length; i ++) { // Find the element in the chain if(this.container[hashCode][i].key === key) { return this.container[hashCode][i]; } } return undefined; }You can test it using.Examplelet ht = new HashTable(); ht.put(10, 94); ht.put(20, 72); ht.put(30, 1); ht.put(21, 6); ht.put(15, 21); ht.put(32, 34); console.log(ht.get(20)); console.log(ht.get(21)); console.log(ht.get(55)); console.log(ht.get(32));OutputThis will give the output.{ key: 20, ... Read More
The HTML tag is used to get user input in HTML. To give a limit to the input field, use the min and max attributes, which is to specify a maximum and minimum value for an input field respectively.The max and min attributes are used with number, range, date, datetime, datetime-local, month, time and week input types.ExampleYou can try to run the following code to give a limit to the input field in HTML − HTML input number Mention any number between 1 to 10
To remove elements, we simply need to find them and remove them using a simple splice function call that removes elements in place from an array.Let us look at the implementation of the same − Exampleremove(key) { let hashCode = this.hash(key); for (let i = 0; i < this.container[hashCode].length; i++) { // Find the element in the chain if (this.container[hashCode][i].key === key) { this.container[hashCode].splice(i, 1); return true } } return false; }You can test this using − Examplelet ht = ... Read More
To show and hide div on mouse click using jQuery, use the toggle() method. On mouse click, the div is visible and on again clicking the div, it hides.ExampleLive Demo $(document).ready(function(){ $('#show').click(function() { $('.menu').toggle("slide"); }); }); Click to Show/ Hide div India US UK Australia
Now let us create a forEach function that'll allow us to loop over all key-value pairs and call a callback on those values. For this, we just need to loop over each chain in the container and call the callback on the key and value pairs.ExampleforEach(callback) { // For each chain this.container.forEach(elem => { // For each element in each chain call callback on KV pair elem.forEach(({ key, value }) => callback(key, value)); }); }You can test this using.Examplelet ht = new HashTable(); ht.put(10, 94); ht.put(20, 72); ht.put(30, 1); ht.put(21, 6); ... Read More
Sometimes we need to combine containers together using a join function and get a new container. We'll write a static join method that takes in 2 HashTables and creates a new HashTable with all the values. For the sake of simplicity, we'll let the values from the second one override the values for the first one if there are any keys present in both of them. Examplestatic join(table1, table2) { // Check if both args are HashTables if(!table1 instanceof HashTable || !table2 instanceof HashTable) { throw new Error("Illegal Arguments") } let combo = ... Read More