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'use strict'; |
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module.exports = { |
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isString: function(arg) { |
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return typeof(arg) === 'string'; |
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}, |
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isObject: function(arg) { |
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return typeof(arg) === 'object' && arg !== null; |
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}, |
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isNull: function(arg) { |
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return arg === null; |
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}, |
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isNullOrUndefined: function(arg) { |
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return arg == null; |
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} |
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};
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