Javascript Articles - Page 575 of 671

Use the parseInt() method in JavaScript to return an integer after parsing a string. You can also set the numeral system as a second parameter.ExampleYou can try to run the following code to learn how to work with parseFloat() method in JavaScript.                    var val1 = parseInt("20.50");          var val2 = parseInt("30 minutes");          var val3 = parseInt("20",16);                    document.write(val1);          document.write(""+val2);          document.write(""+val3);          

Use the parseFloat() method in JavaScript to return a floating point number after parsing a string.ExampleYou can try to run the following code to learn how to work with parseFloat() method in JavaScript.                    var val1 = parseFloat("2");          var val2 = parseFloat("30 minutes");          document.write(val1);          document.write(""+val2);          

Use the Boolean() method in JavaScript to convert to Boolean. You can try to run the following code to learn how to convert [50, 100] to Boolean in JavaScript.ExampleLive Demo           Convert [50,100] to Boolean                var myVal = [50,100];          document.write("Boolean: " + Boolean(myVal));          

This tutorial will teach us to set the width of the right border with JavaScript. To set the width of the right border, use the borderRightWidth property. Set the width of the right border using this property. We can also apply the borderWidth to set the right border. Borders are used on various elements on a webpage. They display the boundaries of an element. We can apply the borders to all sides of an element. There are different properties to set different sides of a border. For a static border, generally, CSS is used. But to change it dynamically, JavaScript ... Read More

In this tutorial, we will learn to set a style of the right border with JavaScript. To set the style of the right border in JavaScript, use the borderRightStyle property. Set the style of the right border using this property. We can apply borders to an element from any side or all sides. We can customize that border on any side. Every edge of a border has a specific property that can use only for that edge. We can provide three parameters like style, color, and width for creating a border. CSS is used to do such tasks. But, we ... Read More

Use the copyWithin() method in JavaScript to copy array elements. You can set the index from/to where (index) the elements are copied. The following are the elements supported by JavaScript.target − The position of the index from where the elements is to be copied.begin − The index to start copying the element. This is an optional parameter.end − The index to end copying the element. This is an optional parameter.ExampleYou can try to run the following code to learn how to work with copyWithin() method in JavaScript.                    var num ... Read More

The altkey property is used to show whether ALT key is pressed or not when key event was triggered.ExampleYou can try to run the following code to learn how to implement altKey property in JavaScript.                 Press any key                function funcAltKey(event) {             var val = document.getElementById("res");                         if (event.altKey) {                val.innerHTML = "ALT key: Pressed";             } else {                val.innerHTML = "ALT key: NOT Pressed";             }          }          

Use the String() method in JavaScript to convert to String. You can try to run the following code to learn how to convert { } to String in JavaScript.ExampleLive Demo           Convert {} to String                var myVal = {};          document.write("String: " + String(myVal));          

The fill() method in JavaScript is used to fill elements with static value in an array. The following are the parameters for fill() −value− The value to be filled.begin− The start index to begin filling the array.end− The ending index to stop filling the array.ExampleYou can try to run the following code to learn how to work with fill() method on JavaScript −                    var num = ["One", "Two", "Three", "Four", "Five"];          document.write(num);          document.write(""+num.fill("Six",2,3));          

Use the Boolean() method in JavaScript to convert to Boolean. You can try to run the following code to learn how to convert [ ] to Boolean in JavaScript.ExampleLive Demo           Convert [] to Boolean                var myVal = [];          document.write("Boolean: " + Boolean(myVal));