File: typeGuardOfFormExpr1AndExpr2.js

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//// [typeGuardOfFormExpr1AndExpr2.ts]
var str: string;
var bool: boolean;
var num: number;
var strOrNum: string | number;
var strOrNumOrBool: string | number | boolean;
var numOrBool: number | boolean;
class C { private p; }
var c: C;
var cOrBool: C| boolean;
var strOrNumOrBoolOrC: string | number | boolean | C;

// A type guard of the form expr1 && expr2
//  - when true, narrows the type of x by expr1 when true and then by expr2 when true, or
//  - when false, narrows the type of x to T1 | T2, where T1 is the type of x narrowed by expr1 when 
//    false, and T2 is the type of x narrowed by expr1 when true and then by expr2 when false.

// (typeguard1 && typeguard2)
if (typeof strOrNumOrBool !== "string" && typeof strOrNumOrBool !== "number") {
    bool = strOrNumOrBool; // boolean
}
else {
    strOrNum = strOrNumOrBool; // string | number
}
// (typeguard1 && typeguard2 && typeguard3)
if (typeof strOrNumOrBoolOrC !== "string" && typeof strOrNumOrBoolOrC !== "number" && typeof strOrNumOrBoolOrC !== "boolean") {
    c = strOrNumOrBoolOrC; // C
}
else {
    strOrNumOrBool = strOrNumOrBoolOrC; // string | number | boolean
}
// (typeguard1 && typeguard2 && typeguard11(onAnotherType))
if (typeof strOrNumOrBoolOrC !== "string" && typeof strOrNumOrBoolOrC !== "number" && typeof strOrNumOrBool === "boolean") {
    cOrBool = strOrNumOrBoolOrC; // C | boolean
    bool = strOrNumOrBool; // boolean
}
else {
    var r1: string | number | boolean | C = strOrNumOrBoolOrC; // string | number | boolean | C
    var r2: string | number | boolean = strOrNumOrBool;
}
// (typeguard1) && simpleExpr
if (typeof strOrNumOrBool !== "string" && numOrBool !== strOrNumOrBool) {
    numOrBool = strOrNumOrBool; // number | boolean
}
else {
    var r3: string | number | boolean = strOrNumOrBool; // string | number | boolean
}

//// [typeGuardOfFormExpr1AndExpr2.js]
var str;
var bool;
var num;
var strOrNum;
var strOrNumOrBool;
var numOrBool;
var C = /** @class */ (function () {
    function C() {
    }
    return C;
}());
var c;
var cOrBool;
var strOrNumOrBoolOrC;
// A type guard of the form expr1 && expr2
//  - when true, narrows the type of x by expr1 when true and then by expr2 when true, or
//  - when false, narrows the type of x to T1 | T2, where T1 is the type of x narrowed by expr1 when 
//    false, and T2 is the type of x narrowed by expr1 when true and then by expr2 when false.
// (typeguard1 && typeguard2)
if (typeof strOrNumOrBool !== "string" && typeof strOrNumOrBool !== "number") {
    bool = strOrNumOrBool; // boolean
}
else {
    strOrNum = strOrNumOrBool; // string | number
}
// (typeguard1 && typeguard2 && typeguard3)
if (typeof strOrNumOrBoolOrC !== "string" && typeof strOrNumOrBoolOrC !== "number" && typeof strOrNumOrBoolOrC !== "boolean") {
    c = strOrNumOrBoolOrC; // C
}
else {
    strOrNumOrBool = strOrNumOrBoolOrC; // string | number | boolean
}
// (typeguard1 && typeguard2 && typeguard11(onAnotherType))
if (typeof strOrNumOrBoolOrC !== "string" && typeof strOrNumOrBoolOrC !== "number" && typeof strOrNumOrBool === "boolean") {
    cOrBool = strOrNumOrBoolOrC; // C | boolean
    bool = strOrNumOrBool; // boolean
}
else {
    var r1 = strOrNumOrBoolOrC; // string | number | boolean | C
    var r2 = strOrNumOrBool;
}
// (typeguard1) && simpleExpr
if (typeof strOrNumOrBool !== "string" && numOrBool !== strOrNumOrBool) {
    numOrBool = strOrNumOrBool; // number | boolean
}
else {
    var r3 = strOrNumOrBool; // string | number | boolean
}