JavaScript 基礎語法 (六)

陳育霖

for 迴圈

1. var n = document.getElementById("number");
   
2. var sum = 0;
   
3. for (i = 1; i <= n; i++){
   
4.     sum += number;
   
5. }
   
6. document.getElementById("total").innerHTML = sum;

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while 迴圈

1. var n = document.getElementById("number");
   
2. var sum = 0;
   
3. var i = 1;
   
4. while(i <= n){
   
5.     sum += i;
   
6. }
   
7. document.getElementById("total").innerHTML = sum;

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陣列

1. var numbers = [1, 2, 3, 4, 5];
   
2. var sorted = numbers.sort();
   
3. var arr_length = numbers.length;
   
4. numbers.push(10);
   
5. numbers.unshift(0);
   
6. numbers.pop();
   
7. numbers.shift();
   
8. numbers.slice(index, length);
   
9. numbers.splice(index, length, 'word');

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