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JavaScript is a high-level, interpreted programming language. Nowadays, It is a most popular programming language in the software industry.
Hello friends here I’m going to show you, how to start node js application as beginner.First of all you make sure before starting node js you better understand core JavaScript syntax and function and prototyping scope and you should know about some…
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 that means Asynchronous code allows the program to be executed immediately where the synchronous…
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>
CONCAT function is used for merging two or more array or you can push value into array by using CONCAT in JavaScript. Syntax: var1.concat(var2) Let me show here some examples for CONCAT function. Example 1:var a1 = [“a”,”b”,”c”];var a2 = [“d”,”e”,”f”];var c…
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…