| 1 | export default {
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| 2 | get: function() {
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| 3 | return this._.speed;
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| 4 | },
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| 5 | set: function(s) {
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| 6 | if (typeof s !== 'number' ||
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| 7 | isNaN(s) ||
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| 8 | !isFinite(s) ||
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| 9 | s <= 0) {
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| 10 | return this._.speed;
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| 11 | }
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| 12 | this._.speed = s;
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| 13 | if (this._.width) {
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| 14 | this._.duration = this._.width / s;
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| 15 | }
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| 16 | return s;
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| 17 | }
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| 18 | };
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