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34 lines
1006 B
34 lines
1006 B
/*===
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MAX_VALUE -> number 1.7976931348623157e+308
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writable=false, enumerable=false, configurable=false
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MIN_VALUE -> number 5e-324
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writable=false, enumerable=false, configurable=false
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NaN -> number NaN
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writable=false, enumerable=false, configurable=false
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POSITIVE_INFINITY -> number Infinity
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writable=false, enumerable=false, configurable=false
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NEGATIVE_INFINITY -> number -Infinity
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writable=false, enumerable=false, configurable=false
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===*/
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function valueTest() {
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var names = [ 'MAX_VALUE', 'MIN_VALUE', 'NaN', 'POSITIVE_INFINITY', 'NEGATIVE_INFINITY' ];
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var i;
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var pd, v;
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for (i = 0; i < names.length; i++) {
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pd = Object.getOwnPropertyDescriptor(Number, names[i]);
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if (!pd) { print('does not exist'); continue; }
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v = pd.value;
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print(names[i], '->', typeof v, v);
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print('writable=' + pd.writable +
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', enumerable=' + pd.enumerable +
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', configurable=' + pd.configurable);
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}
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}
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try {
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valueTest();
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} catch (e) {
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print(e);
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}
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