JavaScript 1.7 is a language update introducing several new features, in particular generators, iterators, array comprehensions, let expressions, and destructuring assignment. It also includes all the features of JavaScript 1.6.
Questions tagged [javascript-1.7]
6 questions
150
votes
4 answers
What does curly brackets in the `var { ... } = ...` statements do?
Not sure if this is a Mozilla-specific JS syntax, but I often found variables being declared this way, for example, in add-on SDK docs:
var { Hotkey } = require("sdk/hotkeys");
and in various chrome Javascript (let statement is being used in place…
timdream
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4
votes
1 answer
Javascript. Swap two variables. How it works?
Saw in a single source next:
[param_o,param_got] = [param_got,param_o];
This code swap variables param_o & param_got.But how [param_o,param_got] = [param_got,param_o] works, if [] is new instance of Array in Javascript ?
EDIT
Try checking:
var…
voodoo417
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1
vote
3 answers
The Network Adapter could not establish the connection Vendor code 17002 on SQL developer all versions
I get the above error when connecting to a new schema.
Note that when my VPN is connected initially all the connections(C1,C2,C3...) work fine. I then start working on one connection(C1) and after say 2 hours if i try to connect to C2 I have this…
Shil N
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1
vote
3 answers
How to use let (or other JS 1.7 features) in the web console?
I was wanting to test some things with let statement in the console, but I ran into a problem - it isn't supported in Firefox or Chromium. I know it's supported, if you set the javascript version in a script tag, but is there any option that will…
NoBugs
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0
votes
1 answer
Elements inside custom HTML tag aren't initialised in constructor
I need to access elements inside a custom tag I created .
The problem is that the constructor isn't called after initializing these elements (which is expected). In this example I can't access the form tag manifested in the object…
mahmoud fathy
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votes
2 answers
'Char' type not converting to 'String' type as expected
private boolean CharToString(){
String lineOfText = "XXXXXX";
String desiredResult = "X";
String actualResult = "initialised value";
for(int i = 0; i < lineOfText.length(); i ++){
actualResult =…
ZOMGbies
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