@@ -19,10 +19,19 @@ const myArray = [1, 'one', {some: 'object'}, new Date()]
1919** Creating an array**
2020
2121```
22+ /**** create new variable ****/
2223const grades = [1,2,3]; // this is the best way to create an array.
2324const grades = new Array(1,2,3); // use of the constructor.
2425const grades = new Array(3); // will initialize the array with the length of 3.
26+ const newGradesArray = [...grades, grade]; // will declare the newGradesArray variable and assign the values from the grades array and from grade.
27+ /**** create new variable ****/
28+
29+ /**** change const to let ****/
30+ let grades = [1,2,3]; // this is the best way to create an array.
31+ let grades = new Array(1,2,3); // use of the constructor.
32+ let grades = new Array(3); // will initialize the array with the length of 3.
2533grades = [...grades, grade]; // will reinstantiate the grades variable.
34+ /**** change const to let ****/
2635
2736// use of the concat() function.
2837const a = [1,2,3];
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