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Found 444 Articles for Programming Scripts

342 Views
The eval() function accepts a string value which holds JavaScript code. This function executes the given code and returns the result of the code.SyntaxIts Syntax is as followseval(32*45);Example Live Demo JavaScript Example document.write(eval(32*45)); document.write(""); document.write(eval(new String("Hello welcome to Tutorialspoint"))); Output1440 Hello welcome to Tutorialspoint

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The isFinite() function accepts a value and determines whether the given value is a finite number or not. If so, this method returns true else it returns false. You can also invoke this method using Number object.SyntaxIts Syntax is as followsisFinite(5655);Example Live Demo JavaScript Example var result1 = Math.min(); document.write(isFinite(result1)); document.write(""); var result2 = Number.isFinite(100/0); document.write(result2); document.write(""); var result3 = Math.max(25, 36, 862); document.write(isFinite(result3)); Outputfalse false true

487 Views
The isNaN() function accepts a value and determines whether the given value is a number or not.If so, this method returns true else it returns false. You can also call this method using Number object.SyntaxIts Syntax is as followsisNAN(5655);Example Live Demo JavaScript Example var result1 = parseFloat("Ef00A.D3"); document.write(isNaN(result1)); document.write(''); var result2 = Math.log("welcome"); document.write(isNaN(result2)); document.write(''); var result3 = Math.log(1254); document.write(isNaN(result3)); Outputtrue true false

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The parseFloat() function accepts two parameters one is a string representing a number and another is a number representing the radix and returns an integer of the given radix.SyntaxIts Syntax is as followsnum.parseFloat('4524', 8);Example Live Demo JavaScript Example var result1 = parseFloat(Math.PI); document.write("Result: "+result1); document.write(''); var result2 = parseFloat("245.12@welcome"); document.write("Result: "+result2); document.write(''); var result3 = parseFloat("11111100.010"); document.write("Result: "+result3); OutputResult: 3.141592653589793 Result: 245.12 Result: 11111100.01

521 Views
The parseInt() function accepts two parameters one is a string representing a number and another is a number representing the radix and returns an integer of the given radix.SyntaxIts Syntax is as followsnum.parseInt('4524', 8);Example Live Demo JavaScript Example var result = parseInt('4524', 8); document.write("Result: " + result); OutputResult: 2388Example Live Demo JavaScript Example var result1 = parseInt('4524', 8); document.write("Result: " + result1); document.write(""); var result2 = parseInt('4524', 10); document.write("Result: " + result2); document.write(""); var result3 = parseInt('4524', 16); document.write("Result: " + result3); OutputResult: 2388 Result: 4524 Result: 17700

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The byteLength property of the SharedArrayBuffer returns an unsigned, 32-bit integer that specifies the size/length of a SharedArrayBuffer. Syntax Its Syntax is as follows sharedArrayBuffer.byteLength Example Live Demo JavaScript Example var sharedArrayBuffer = new SharedArrayBuffer(8); var result = sharedArrayBuffer.byteLength; document.write("length of the shared array buffer is: " + result); Output length of the shared array buffer is: 8

847 Views
The values() function of the Set returns an iterator object which holds the values of the current Set object.The next() method returns the next element in the iterator object.SyntaxIts Syntax is as followssetObj.values()Example Live Demo JavaScript Example const setObj = new Set(); setObj.add('Apples'); setObj.add('Oranges'); setObj.add('Bananas'); setObj.add('Grapes'); var valuesObject = setObj.values(); for(i=0; i

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The has() function of the Set accepts a value and verifies whether the current object contains the specified value. If so, this function returns the boolean value true else, it returns false.SyntaxIts Syntax is as followssetObj.has()Example Live Demo JavaScript Example const setObj = new Set(); setObj.add('Java'); setObj.add('JavaFX'); setObj.add('JavaScript'); setObj.add('HBase'); document.write("Contents of the Set: "); document.write(""); for (let item of setObj) { document.write(item); document.write(""); ... Read More

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The forEach() function of the Set object accepts the name of a particular function and runs that function for every value in the current set. For Example, if you have written a function to print a value, if you use forEach() function it prints the value of every element in the set.SyntaxIts Syntax is as followssetObj.forEach()Example Live Demo JavaScript Example function sampleFunction(value){ document.writeln(value+", "); } const setObj1 = new Set(); setObj1.add('Java'); setObj1.add('JavaFX'); setObj1.add('JavaScript'); ... Read More

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The entries() function of the Set returns an iterator object which holds the contents of the current Set. This iterator object returns a pair of values for each entry just like map (key and value). But here, instead of both key and value it returns the element of the set in the particular position.SyntaxIts Syntax is as followssetObj.entries()Example Live Demo JavaScript Example const setObj = new Set(); setObj.add('Java'); setObj.add('JavaFX'); setObj.add('JavaScript'); setObj.add('HBase'); const entries = setObj.entries(); ... Read More