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JavaScript is a high-level, interpreted programming language. Nowadays, It is a most popular programming language in the software industry.
Here I’m going to explain what does means by async and await in javascript and node js. Async The async keyword is used to making a function asynchronous. Await The await keyword will ask the execution to wait until the defined task…
Hoisting, when in JavaScript variable used before declaration that is called hoisting, a variable can be declared after it has been used. In other words; you can say one variable can be used before it has been declared. example a = 10;…
Strict mode makes it easier to write secure and error free code in JavaScript.As an example, in normal JavaScript, mistyping or undefined a variable name creates a new global variable and this will not return any error but In strict mode, this…
<!DOCTYPE html><html><head> <title></title></head><body> <ul class=”ul-test”> <li>a</li> <li>b</li> <li>c</li> <li>d</li> </ul></body></html> JQuery and JavaScript Script <script type=”text/javascript”>//By using JQuery$(document).ready(function(){ $(“.ul-test”).each(function(){ $(this).text(); });}); //By using Javascript- var ulObj = document.getElementsByClassName(“ul-test”)[0].children;for(let i=0; i<ulObj.length;i++){ console.log(ulObj[i]); document.write(ulObj[i].innerText);}</script>
You can concat array in JavaScript or cancat means you can say merge two variables. For example- var arr1 = [‘A’,’B’,’C’]; var arr2 = [‘D’,’E’]; var result = arr1.concat(arr2); console.log(result);
var fruits = [“Banana”, “Orange”, “Apple”, “Mango”]; var x = document.getElementById(“demo”); x.innerHTML = Array.isArray(fruits);
ECMA script is also know as JavaScript 6(ES6). JavaScript ECMA Script 6 is introduce some of new features. Such as- *JavaScript let *JavaScript Const *Array.find() *Array.findIndex() *Exponentiation *Default parameter values The let statement allow you to declare a variable with block scope…
Create HTML Element and there attributes in JavaScript Here, I’m going to share how to create all HTML elements and there attributes. //Create Input Text var ele = document.createElement(“input”); ele.type = “text”; ele.className = “form-control form-build”; //Create Input Type Number var ele…
JavaScript: Create Dynamic HTML Select Box element and there options If want creating dynamic HTML Select Box use of JavaScript so its very easy to use you can just use this function. function dynamicSelectBox(idForUse,options_value){ //options_value (provided format should be string with comm…
HTML Select Box: <select id=”A” name=”A”> <option value=“”>select</option> <option value=“all”>All</option> <option value=“one”>one</option> <option value=“two”>two</option> </select> JavaScript- For…