What is array values in PHP?

What are array values? An array is a sequence of values; the values in the array are called elements. You can make an array of int s, double s, String s, or any other type, but all the values in an array must have the same type. To create an array, you have to declare …

Read more

Question: Why we use set in JavaScript?

What is the use of sets in JavaScript? A JavaScript Set is a collection of unique values. Each value can only occur once in a Set. A Set can hold any value of any data type. What is set JavaScript? Sets are a new object type with ES6 (ES2015) that allow creating collections of unique …

Read more

Why filters are used in PHP?

What are PHP filters? PHP Filter is an extension that filters the data by either sanitizing or validating it. It plays a crucial role in security of a website, especially useful when the data originates from unknown or foreign sources, like user supplied input. For example data from a HTML form. What is filter input …

Read more

What is array like object in JavaScript?

Why do we call arguments an array-like object? Array-Like Objects That usually means that they have indexed access and a length property, but none of the array methods. Examples include the special variable arguments, DOM node lists, and strings. What is difference between array and object in JavaScript? Both objects and arrays are considered “special” …

Read more

Question: How can I get columns in MySQL table?

How do I get a list of columns in a SQL table? Getting The List Of Column Names Of A Table In SQL Server Information Schema View Method. You can use the information schema view INFORMATION_SCHEMA. … System Stored Procedure SP_COLUMNS Method. Another method is to use the system stored procedure SP_COLUMNS. … SYS.COLUMNS Method. …

Read more

How much JavaScript do I need to know to learn react native?

Do you need to know JavaScript to learn react native? It is based on the React library created by Facebook. … A developer who knows React can target and build apps for any platform supported by React Native. HTML, CSS, and JavaScript are the core technologies of the web that are required to learn React. …

Read more

How do I grant permission to drop a table in SQL Server?

What permissions are needed to delete a table in SQL Server? membership in the db_ddladmin fixed database role. DROP is not a grantable permission. grantees of the ALTER permission on the schema or permissions that imply alter on the schema. membership in the db_ddladmin fixed database role. How do I drop a table in SQL …

Read more

How do I print a SQL query statement?

How do I print a SQL statement? Declare @SumVal int; Select @SumVal=Sum(Amount) From Expense; Print @SumVal; You can, of course, print any number of fields from the table in this way. Of course, if you want to print all of the results from a query that returns multiple rows, you’d just direct your output appropriately …

Read more