Starting with pure JavaScript is the best way to get a solid knowledge of web game development. After that, you can pick any framework you like and use it for your projects. Frameworks are just tools built with the JavaScript language; so even if you plan on working with them, it's good to learn about the language itself first to know what. I'm trying to make my code smaller and less verbose. The pass in the if statement are there because I need to check specifics on the dice roll. The code is running a game of craps where on the first roll if I get a 7 or 11 I win, or if I get a 2,3,12 I lose. Any other number I keep rolling till I either get what I rolled the first time or I.
Loops can execute a block of code as long as a specified condition is true.
The While Loop
The while loop loops through a block of code as long as a specified condition is true.
Syntax
// code block to be executed
}
Example
In the following example, the code in the loop will run, over and over again, as long as a variable (i) is less than 10:
Example
text += 'The number is ' + i;
i++;
}
If you forget to increase the variable used in the condition, the loop will never end. This will crash your browser.
The Do/While Loop
Craps Game Javascript
The do/while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.
Syntax
// code block to be executed
}
while (condition);
Example
Blackjack Javascript Code
The example below uses a do/while loop. The loop will always be executed at least once, even if the condition is false, because the code block is executed before the condition is tested:
Example
text += 'The number is ' + i;
i++;
}
while (i < 10);
Craps Javascript
Do not forget to increase the variable used in the condition, otherwise the loop will never end!
Comparing For and While
If you have read the previous chapter, about the for loop, you will discover that a while loop is much the same as a for loop, with statement 1 and statement 3 omitted.
The loop in this example uses a for loop to collect the car names from the cars array:
Example
var i = 0;
var text = ';
for (;cars[i];) {
text += cars[i] + '
';
i++;
}
The loop in this example uses a while loop to collect the car names from the cars array:
Example
var i = 0;
var text = ';
while (cars[i]) {
text += cars[i] + '
';
i++;
}
