411 REFERENCE · Wikibooks
Common JavaScript Manual/Conditional statements
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If statements
We can do so that some blocks of code should execute only if condition true. For it we should use "if" expression. Let's see example.
n = 6;
if(n > 0)print("n is positive");
Else statements
We also can make code block that should be executed only if condition false. For execute much commands just enclose it in '{' and '}'.
n = -5;
if(n > 0){
print("n is positive");
}else{
print("n is negative or zero");
}
Else if statements
Also we can set any number conditions and blocks of code for this conditions.
n = 0;
if(n > 0){
print("n is positive");
}else if(n == 0){
print("n is zero");
}else{
print("n is negative");
}
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Data types - Objects While and For loops