What is the meaning of var = var || {}
32226
What does "options = options || {}" mean in Javascript?
19592
What does ||= (or-equals) mean in Ruby?
89046
Difference between "var", "let" and "const"
32479
What's the difference between => , ()=>, and Unit=>
130425
Var[A+B+C] = Var [A] + Var [B] + Var [C]
56113
Operator precedence with Javascript Ternary operator
35549
What is the difference between the | and || or operators?
105298
How does the "this" keyword in Javascript act within an object literal?
42776
What is the meaning of []
50416
What does the >?= operator mean?
98591
What does an ampersand after this assignment operator mean?
61273
What do these ( += , -= , *= , /= ) Operators Mean?
36005
What does 'var that = this;' mean in JavaScript?
11651
What does curly brackets in the `var { ... } = ...` statements do?
92813
What does << mean in Ruby?
78396
Logical Operators, || or OR?
105247
what does $ mean here in JQuery