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The Array.isArray() method of JavaScript is used to determine whether an object is an array or not.The syntax is as follows −Array.isArray(ob)Above, the ob parameter is the object to be tested.Let us now implement the Array.isArray() method in JavaScript −Example Live Demo Ranking Points Is this an array? Click the below button to get the answer... Result var pointsArr = [10, 20, 30, 40, 50, 60, 70, 80, 90, 1000]; var res = pointsArr.entries(); for (val of res) { ... Read More
height in jQueryThe height() is the vertical measurement of the container, for example, height of a div. It excludes the padding border and margin.To get the height of an element in jQuery, use the height() method in jQuery.ExampleYou can try to run the following code to get the height:Live Demo $(document).ready(function(){ $("button").click(function(){ alert("Height of div element: " + $("div").height()); }); }); Get Height of div outerHeight() in jQueryThe outerHeight() returns the outer height of the first matched element. It includes padding ... Read More
Height in jQueryHeight is the vertical measurement of the container, for example, height of a div. It excludes the padding border and margin.To get the height of an element in jQuery, use the height() method in jQuery.ExampleYou can try to run the following code to get the height:Live Demo $(document).ready(function(){ $("button").click(function(){ alert("Height of div element: " + $("div").height()); }); }); Get Height of div innerHeight in jQueryThe innerHeight( ) method gets the inner height (excludes the border and includes the ... Read More
The array.includes() method of JavaScript is used to check whether an array contains a specified element.The syntax is as follows −array.includes(ele, start)Above, the parameter ele is the element to search for. The start parameter is the position to begin the search with.Let us now implement the array.includes() method in JavaScript −Example Live Demo Car Variant Result var carid = ["110", "230", "299", "399"]; document.getElementById("test").innerHTML = carid; function display() { var n = carid.includes("230"); document.getElementById("test").innerHTML = ... Read More
To get the height of a div element, use the height() method in jQuery.ExampleYou can try to run the following code to get the height of a div element using jQuery:Live Demo $(document).ready(function(){ $("button").click(function(){ alert("Height of div element: " + $("div").height()); }); }); Get Height of div
To get the width of a div element, use the width() method in jQuery.ExampleYou can try to run the following code to get the width of a div element using jQuery:Live Demo $(document).ready(function(){ $("button").click(function(){ alert("Width of div element: " + $("div").width()); }); }); Get Width of div
The array.flatMap() method of JavaScript is used to flatten the input array element into a new array.The syntax is as follows − array.flatMap(function callback(current_value, index, Array))Let us now implement the array.flatMap() method in JavaScript −Example Live Demo Ranking Points Is any point equal to 550 from the key-value pairs... Result var pointsArr = [10, 20, 30, 40, 50, 60, 70, 80, 90, 1000]; var res = pointsArr.flatMap(val => [val + 10]).entries(); for (val of res) { document.getElementById("test").innerHTML += ... Read More
With jQuery, it’s easy to get selected text from a drop-down list. This is done using the select id. To change the selected value of a drop-down list, use the val() method.ExampleYou can try to run the following code to learn how to change the selected value of a drop-down list. Here, we have a default select option first, but the alert shows the second option, which have been changed using the val method():Live Demo jQuery Selector $(document).ready(function() { ... Read More
The array.entries() method of JavaScript is used to return an Array Iterator object with key/value pairs.The syntax is as follows − array.entries()Let us now implement the array.entries() method in JavaScript −Example Live Demo Ranking Points Is any point equal to 550 from the key-value pairs... Result var pointsArr = [10, 20, 30, 40, 50, 60, 70, 80, 90, 1000]; var res = pointsArr.entries(); for (val of res) { document.getElementById("test").innerHTML += val + ""; } ... Read More
To replace innerHTML of a div in jQuery, use the html() or text() method.ExampleYou can try to run the following code to learn how to replace innerHTML of a div:Live Demo $(document).ready(function(){ $("#button1").click(function(){ $('#demo').html('Demo text'); }); }); This is Amit! Replace