TYPESCRIPT

typescript array

// let arr_name, elemType[];
let list: number[] = [1, 2, 3];
// Generic array type, Array<elemType>:
let list: Array<number> = [1, 2, 3];

type check array typescript

if (Array.isArray(value)) {
   var somethingIsNotString = false;
   value.forEach(function(item){
      if(typeof item !== 'string'){
         somethingIsNotString = true;
      }
   })
   if(!somethingIsNotString && value.length > 0){
      console.log('string[]!');
   }
}

array in typescript

let arraytest: any[] = [1, 2, 3]
console.log(arraytest)
/*
Output: [1, 2, 3]
or try this
*/
console.log([1, 2, 3])// clever trick

typescript array

let list: number[] = [1, 2, 3];

typescript array in arrays

var listOfLists : number[][];
// or
const listOfLists : Array<Array<number>>;