168 lines
4.6 KiB
TypeScript
168 lines
4.6 KiB
TypeScript
//// [typeGuardsInModule.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 strOrNum: string | number;
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var var1: string | number;
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// Inside module
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module m1 {
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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// variables in module declaration
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var var2: string | number;
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if (typeof var2 === "string") {
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num = var2.length; // string
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}
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else {
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num = var2; // number
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}
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// exported variable in the module
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export var var3: string | number;
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if (typeof var3 === "string") {
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strOrNum = var3; // string | number
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}
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else {
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strOrNum = var3; // string | number
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}
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}
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// local module
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module m2 {
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var var2: string | number;
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export var var3: string | number;
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module m3 {
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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// local variables from outer module declaration
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num = typeof var2 === "string" && var2.length; // string
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// exported variable from outer the module
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strOrNum = typeof var3 === "string" && var3; // string | number
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// variables in module declaration
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var var4: string | number;
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if (typeof var4 === "string") {
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num = var4.length; // string
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}
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else {
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num = var4; // number
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}
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// exported variable in the module
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export var var5: string | number;
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if (typeof var5 === "string") {
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strOrNum = var5; // string | number
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}
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else {
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strOrNum = var5; // string | number
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}
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}
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}
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// Dotted module
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module m3.m4 {
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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// variables in module declaration
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var var2: string | number;
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if (typeof var2 === "string") {
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num = var2.length; // string
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}
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else {
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num = var2; // number
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}
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// exported variable in the module
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export var var3: string | number;
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if (typeof var3 === "string") {
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strOrNum = var3; // string | number
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}
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else {
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strOrNum = var3; // string | number
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}
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}
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//// [typeGuardsInModule.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 strOrNum;
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var var1;
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// Inside module
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var m1;
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(function (m1) {
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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// variables in module declaration
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var var2;
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if (typeof var2 === "string") {
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num = var2.length; // string
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}
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else {
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num = var2; // number
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}
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if (typeof m1.var3 === "string") {
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strOrNum = m1.var3; // string | number
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}
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else {
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strOrNum = m1.var3; // string | number
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}
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})(m1 || (m1 = {}));
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// local module
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var m2;
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(function (m2) {
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var var2;
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var m3;
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(function (m3) {
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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// local variables from outer module declaration
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num = typeof var2 === "string" && var2.length; // string
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// exported variable from outer the module
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strOrNum = typeof m2.var3 === "string" && m2.var3; // string | number
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// variables in module declaration
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var var4;
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if (typeof var4 === "string") {
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num = var4.length; // string
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}
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else {
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num = var4; // number
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}
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if (typeof m3.var5 === "string") {
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strOrNum = m3.var5; // string | number
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}
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else {
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strOrNum = m3.var5; // string | number
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}
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})(m3 || (m3 = {}));
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})(m2 || (m2 = {}));
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// Dotted module
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var m3;
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(function (m3) {
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var m4;
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(function (m4) {
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// global vars in function declaration
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num = typeof var1 === "string" && var1.length; // string
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// variables in module declaration
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var var2;
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if (typeof var2 === "string") {
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num = var2.length; // string
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}
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else {
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num = var2; // number
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}
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if (typeof m4.var3 === "string") {
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strOrNum = m4.var3; // string | number
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}
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else {
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strOrNum = m4.var3; // string | number
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}
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})(m4 = m3.m4 || (m3.m4 = {}));
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})(m3 || (m3 = {}));
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