Week 6, Section 2, 4-8 Programming exercise – Get all the elements in a two-dimensional array and concatenate them

Get all the elements of a two-dimensional array and concatenate them

Topic request

Thought analysis

Code implementation

    // Get all the elements of the two-dimensional array and assemble them into a "gold digger, programmer's dream factory"
    var arr = [
      ["Dig"."Gold"."Network"],
      ["Cheng"."Order"."Member"],
      ["Dream"."Work"."Plant"]].// Add missing contents to array, i.e. "," and "of"
    arr[0].push(', ');
    arr[1].push('the');

    // Define the STR to hold the result
    var str = ' ';
    var newArr = [];

    // Loop over each item in the two-dimensional array
    for (var i = 0; i < 3; i++) {
      for (var j = 0; j < 4; j++) {
        newArr.push(arr[i][j]);
      }
    }
    newArr.length -= 1;
    str = newArr.join(' ');
    console.log(str);
Copy the code

Console output