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Updated javascript.html.markdown

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Added some additional information on declaring variables.
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Xander Smalbil 2015-10-15 22:38:44 +02:00
parent 66bc42e31b
commit 841dcb5f09
1 changed files with 4 additions and 0 deletions
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@ -144,6 +144,10 @@ someOtherVar = 10;
// Variables declared without being assigned to are set to undefined.
var someThirdVar; // = undefined
// if you wan't to declare a couple of variables, then you could use a comma
// separator
var someFourthVar = 2, someFifthVar = 4;
// There's shorthand for performing math operations on variables:
someVar += 5; // equivalent to someVar = someVar + 5; someVar is 10 now
someVar *= 10; // now someVar is 100