JavaScript Conditional Statements

In JavaScript language, the conditional statements are very powerful. There are two main kinds of statements: condition and iteration.
The conditional statements with "if" and "switch" are used in the codes with more than one statements which may happen sequencely or simultaneously. The structures are below:
1. if (condition)
       {
        statement1;
        }
        statement2;
2. if (condition)
       {
       statement1;
       }
    esle
       {
       statement2;
       }
3. if (condition1)
    {
    statement1;
    }
    esle if (condition2)
    {
    statement2;
     }
    else
    {
    statement3;
    }
4. switch (expression)
    {
    case value1: statement1;
    break;
    case value2: statement2;
    break;
    case value3: statement3;
    break;
    default: statement4;
    }
The iteration statements are for the statements which may happen many times but doing the same instruction. The structures are below:
1. for (initialization; condition; iteration)
    {
    statement;
    }
2. for (variable in object)
    {
    statements;
    }
3. while (condition)
    {
    statements;
    }
4. do
    {
    statements;
    } while (condition);
When using these kinds of statements, "break;" and "continue;" are working within them to perform two functions: "jump out the whole iteration" and "just jump out this iteration and continue to do another one".