why giveing extra element when use for...in javascript
78
Why is using "for...in" for array iteration a bad idea?
153404
omission of 'of/for'
49518
What is the JavaScript >>> operator and how do you use it?
11651
What does curly brackets in the `var { ... } = ...` statements do?
91633
Why don't we just use element IDs as identifiers in JavaScript?
111363
What does the following for loop syntax mean in C?
145090
ampersand (&) at the end of variable etc
133235
What does ‘::’ (double colon) do in JavaScript?
33421
What is the difference between for..in and for each..in in javascript?
54546
How does the enhanced for statement work for arrays, and how to get an iterator for an array?
123590
+ operator before expression in javascript: what does it do?
95541
Why JS function name conflicts with element ID?
15796
the operation of "=" in javascript
16604
What's the purpose (if any) of "javascript:" in event handler tags?
9379
What does a comma do in JavaScript expressions?
44112
"Variable" variables in Javascript?
63017
How does a for loop work, specifically for(;;)?