While reading WebKit Inspector's sources I have stumbled upon syntax
that I have not seen before, namely get & set keywords:
var editor = {
_startLine: 91,
get startLine() {
console.log('Getting start line');
return this._startLine;
},
set startLine(value) {
console.log('Setting start line');
this._startLine = value;
},
}
> editor.startLine = 12
>> Setting start line
>> 12
> editor.startLine
>> Getting start line
>> 12
I fail to see what's the point of this syntax. Considering the fact
that it's still possible to change the value of editor._startLine
without the setter, how is that better than using regular functions
like below?
var editor = {
_startLine: 91,
getStartLine: function() {
console.log('Getting start line');
return this._startLine;
},
setStartLine: function(value) {
console.log('Setting start line');
this._startLine = value;
},
}
> editor.setStartLine(12)
>> Setting start line
> editor.getStartLine()
>> Getting start line
>> 12
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