Found 2556 Articles for HTML

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));          

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));          

To set the shape of the border of the top-right corner in JavaScript, use the borderTopRightRadius property. Set border radius using this property.ExampleYou can try to run the following code to learn how to set the shape of the top-right border with JavaScript.Live Demo                    #box {             border: thick solid gray;             width: 300px;             height: 200px          }                     Demo Text             Change top right border radius                function display() {             document.getElementById("box").style.borderTopRightRadius = "20px";          }          

The ctrlKey property is used to show whether the CTRL key is pressed or not when key event was triggered. You can try to run the following code to learn how to implement a ctrlKey property in JavaScript − Example Live Demo Press any key function funcCtrlKey(event) { var val = document.getElementById("res"); if (event.ctrlKey) { val.innerHTML = "CTRL key: Pressed"; } else { val.innerHTML = "CTRL key: NOT Pressed"; } }

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