Q871. Why do you need to avoid with statement?
JavaScript's with statement was intended to provide a shorthand for writing recurring accesses to objects. So it can help reduce file size by reducing the need to repeat ...
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Q872. What is the output of the following for loops?
```javascript for (var i = 0; i < 4; i++) { // global scope setTimeout(() => console.log(i)); } for (let i = 0; i < 4; i++) { // block scope setTimeout(() => console.log(...
Q873. List down some of the features of ES6
Below are the list of some new features of ES6, 1. Support for constants or immutable variables 2. Block-scope support for variables, constants and functions 3. Arrow fun...
Q874. What is ES6?
ES6 is the sixth edition of the javascript language and it was released in June 2015. It was initially known as ECMAScript 6 (ES6) and later renamed to ECMAScript 2015. A...
Q875. Can I redeclare let and const variables?
No, you cannot redeclare let and const variables. If you do, it throws below error ```bash Uncaught SyntaxError: Identifier 'someVariable' has already been declared ``` *...
Q876. Does the const variable make the value immutable?
No, the `const` variable doesn't make the value immutable. But it disallows subsequent assignments(i.e, You can declare with assignment but can't assign another value lat...
Q877. How will you print the contents of a file?
The most robust and pythonic way to read and print file contents is using the **`with` statement** (context manager), which guarantees the file descriptor is safely close...
Q878. What are default parameters?
In ES5, we need to depend on logical OR operators to handle default values of function parameters. Whereas in ES6, Default function parameters feature allows parameters t...
Q879. What are template literals?
Template literals or template strings are string literals allowing embedded expressions. These are enclosed by the back-tick (`) character instead of double or single quo...
Q880. How do you write multi-line strings in template literals?
In ES5, you would have to use newline escape characters('\\n') and concatenation symbols(+) in order to get multi-line strings. ```javascript console.log("This is string ...