28 lines
663 B
JavaScript
28 lines
663 B
JavaScript
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//// [typeGuardsInGlobal.ts]
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// Note that type guards affect types of variables and parameters only and
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// have no effect on members of objects such as properties.
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// variables in global
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var num: number;
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var var1: string | number;
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if (typeof var1 === "string") {
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num = var1.length; // string
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}
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else {
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num = var1; // number
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}
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//// [typeGuardsInGlobal.js]
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// Note that type guards affect types of variables and parameters only and
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// have no effect on members of objects such as properties.
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// variables in global
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var num;
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var var1;
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if (typeof var1 === "string") {
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num = var1.length; // string
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}
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else {
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num = var1; // number
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}
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