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Original
2026-01-01
Modified
2026-03-09
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<h2>While loop</h2>
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<h2>While loop</h2>
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<h3>Syntax</h3>
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<h3>Syntax</h3>
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while (condition) { actions }<p>Actions will be executed again and again until the condition returns false.</p>
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while (condition) { actions }<p>Actions will be executed again and again until the condition returns false.</p>
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<h3>Accumulation of values in a loop</h3>
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<h3>Accumulation of values in a loop</h3>
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var sum = 0; var i = 0; while (i <= 5) { sum += 1; i++; console.log(i); }<p>The program will log:</p>
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var sum = 0; var i = 0; while (i <= 5) { sum += 1; i++; console.log(i); }<p>The program will log:</p>
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LOG: 1 (number) LOG: 2 (number) LOG: 3 (number) LOG: 4 (number) LOG: 5 (number) LOG: 6 (number) // Loop body code will not be executed, the condition will return false<h2>Calculating percentage of a number</h2>
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LOG: 1 (number) LOG: 2 (number) LOG: 3 (number) LOG: 4 (number) LOG: 5 (number) LOG: 6 (number) // Loop body code will not be executed, the condition will return false<h2>Calculating percentage of a number</h2>
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<p>The easiest way to find a percentage of the number is to divide the number by 100 and multiply by the percentage.</p>
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<p>The easiest way to find a percentage of the number is to divide the number by 100 and multiply by the percentage.</p>
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// Let’s calculate 2 percent of 100 1000 / 100 * 2 = 20; // Let’s calculate 7 percent of 1200 1200 / 100 * 7 = 84;<a>Continue</a>
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// Let’s calculate 2 percent of 100 1000 / 100 * 2 = 20; // Let’s calculate 7 percent of 1200 1200 / 100 * 7 = 84;<a>Continue</a>