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A dynamic finger search data structure should in addition to finger searches also perform the insertion and deletion of elements at a position given by a finger.Finger search trees is defined as a variant of B-trees supporting finger searches in O(log d) time and updates in O(1) time, assuming that only O(1) moveable fingers are maintained.Traversing a finger d positions requires O(log d) time.The finger search trees (that means AVL-trees, red-black trees) constructions either consider a fixed constant number of fingers or only support updates in amortized constant time.Constructions supporting an arbitrary number of fingers and with worst case update ... Read More
The parseInt() method in JavaScript converts a string into a number. The method returns NaN if the value entered cannot be converted to a number.ExampleYou can try to run the following code to convert a string into an integer − Live Demo Check function display() { var val1 = parseInt("50") + ""; var val2 = parseInt("52.40") + ""; var val3 = parseInt(" 75 ") + ""; var res = val1 + val2 + val3; document.getElementById("demo").innerHTML = res; }
To add a number of months to a date, first get the month using getMonth() method and add a number of months.ExampleYou can try to run the following code to add a number of monthsLive Demo var d, e; d = new Date(); document.write(d); e = d.getMonth()+1; document.write("Incremented month = "+e);
Double equals (==) is abstract equality comparison operator, which transforms the operands to the same type before making the comparison. For example,5 == 5 //true '5' == 5 //true 5 == '5' //true 0 == false //trueTriple equals (===) are strict equality comparison operator, which returns false for different types and different content.For example,5 === 5 // true 5 === '5' // false var v1 = {'value':'key'}; var v2 = {'value': 'key'}; v1 === v2 //false
The conditional operator or ternary operator first evaluates an expression for a true or false value and then executes one of the two given statements depending upon the result of the evaluation.S.NoOperator & Description1? : (Conditional )If Condition is true? Then value X: Otherwise value YExampleYou can try to run the following code to understand how Ternary Operator works in JavaScriptLive Demo var a = 10; var b = 20; var linebreak = ""; document.write ("((a > b) ? 100 : 200) => "); result = (a > b) ? 100 : 200; document.write(result); document.write(linebreak); document.write ("((a < b) ? 100 : 200) => "); result = (a < b) ? 100 : 200; document.write(result); document.write(linebreak);
To determine if an argument is sent to function, use “default” parameters.ExampleYou can try to run the following to implement itLive Demo function display(arg1 = 'Tutorials', arg2 = 'Learning') { document.write(arg1 + ' ' +arg2+""); } display('Tutorials', 'Learning'); display('Tutorials'); display();
A finger search on a data structure is defined as an extension of any search operation that structure supports, where a reference (finger) to an element in the data structure is given along with the query. While the search time for an element is most frequently denoted as a function of the number of elements in a data structure, finger search times are treated as a function of the distance between the element and the finger.In a set of m elements, the distance d(a, b) between two elements a and b is their difference in rank. If elements a and ... Read More
To use a variable number of arguments to function, use the arguments object.ExampleYou can try to run the following code to implement arguments to a function in JavaScriptLive Demo function functionArgument(val1, val2, val3) { var res = ""; res += "Expected Arguments: " + functionArgument.length; res += ""; res += "Current Arguments : " + arguments.length; res += ""; res += "Each argument = " for (p = 0; p < arguments.length; p++) { res += ""; res += functionArgument.arguments[p]; res += " "; } document.write(res); } functionArgument(20, 50, 80, "Demo Text!","Hello World", new Date())
The JavaScript version of sleep() is “await”. The await feature pauses the current aync function.ExampleYou can try to run the following code to implement sleep in JavaScriptLive Demo function setSleep(ms) { return new Promise(resolve => setTimeout(resolve, ms)); } async function Display() { document.write('Wait for 5 seconds!'); await setSleep(5000); document.write('After 5 seconds!'); } Display();
The “return” statement in JavaScript mentions a value, which you like to return. Inside a function, the value is returned to the function caller.ExampleYou can try to run the following code to implement return statement inside a functionLive Demo function multiply(num1, num2) { return num1 * num2; } var result = multiply(5, 10); document.write("Multiplication: "+result);