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// primary type const myName:string = 'cloer' const age:number = 13 const married:boolean = false // Array const weekdays:string[] = ['mon', 'tue', 'wed'] const weekend:Array = ['sat', 'sun'] // tuple const user:[string, number] = [myName, age] // void const voidFunc = ():void => { // No return } // never const naverFunc1 = ():never=>{ while(true){ // Infinite loop } } const naverFunc2 = ():neve..