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How do you access global variable from within the main function when the local variable is of the same name?
When you acess a global variable inside main function you must use the same name, because the variable declared as global can be accessed by any function/procedure on the class where it was defined.
What is a javascript variable?
A variable in JavaScript is an identifier that provides a storage location used to store a data value. The data stored at a particular location in memory. That we accessed by using the variable name. In JavaScript programs, a script will have to store the bits of information temporarily. It needs to do its work. It can store this data in variables. In other words, A variable is a symbolic name given to a location in the computer memory. Where we store the value, which can be used in the program. The value of the variable can change during the execution of the program. It may take different values at different times during the execution of the program. The name of the variable that we choose must be meaningful to understand, what it represents in the program. For example var Price = 100; Rules to follow: The name of the variable can contain a letter, digits, underscore(_), and dollar sign($). They must begin with a letter, not with a digit. Uppercase and Lowercase are distinct. That means the variable Total is not the same as total or TOTAl. It should not be a keyword. White space does also not allow. Variable can be any length. Hope this helps. Thank you
Why all variables are declared with in the function?
It is not necessary to to declare variables inside the function in C. If you declare a variable inside a function, the variable becomes local for the function and another variable of same name can be declared in any other function, but you can not use the variable declared in other function. When you declare any variable outside the function body then the variable becomes global and can be used in any function of the program. Note: errno is an example for a variable declared outside any function.
What is micro and how it is different from c variable name?
A macro is a variable that has a constant value throughout the program whereas a C variable is an identifier whose value can differ from function to function, it can be incremented or decremented whereas the value of a macro remains same .
When a local variable has the same name as a field the local variable's name does this to the field's name?
When a local variable has the same name as a field, it shadows the field's name within its scope. This means that within that scope, any reference to the variable name will refer to the local variable rather than the field. As a result, the field becomes inaccessible directly by that name until the scope of the local variable ends. This can lead to confusion and potential bugs if not managed properly.
How do you access global variable from within the main function when the local variable is of the same name?
When you acess a global variable inside main function you must use the same name, because the variable declared as global can be accessed by any function/procedure on the class where it was defined.
What is a javascript variable?
A variable in JavaScript is an identifier that provides a storage location used to store a data value. The data stored at a particular location in memory. That we accessed by using the variable name. In JavaScript programs, a script will have to store the bits of information temporarily. It needs to do its work. It can store this data in variables. In other words, A variable is a symbolic name given to a location in the computer memory. Where we store the value, which can be used in the program. The value of the variable can change during the execution of the program. It may take different values at different times during the execution of the program. The name of the variable that we choose must be meaningful to understand, what it represents in the program. For example var Price = 100; Rules to follow: The name of the variable can contain a letter, digits, underscore(_), and dollar sign($). They must begin with a letter, not with a digit. Uppercase and Lowercase are distinct. That means the variable Total is not the same as total or TOTAl. It should not be a keyword. White space does also not allow. Variable can be any length. Hope this helps. Thank you
Why all variables are declared with in the function?
It is not necessary to to declare variables inside the function in C. If you declare a variable inside a function, the variable becomes local for the function and another variable of same name can be declared in any other function, but you can not use the variable declared in other function. When you declare any variable outside the function body then the variable becomes global and can be used in any function of the program. Note: errno is an example for a variable declared outside any function.
What is micro and how it is different from c variable name?
A macro is a variable that has a constant value throughout the program whereas a C variable is an identifier whose value can differ from function to function, it can be incremented or decremented whereas the value of a macro remains same .
What is difference between Static and Global variable?
Static may be local of global -local static variable is limited to the function scope. and retain it's value when function is been called . compiler differentiate static variables with a prefix function name while dealing with same name static variable in different functions. - Global static variable is visible to all the function defined in the file and retain it value but it cannot be used outside this file. now Global Variable --- this variable is also visible to all of the functions inside the file but also can be used outside the file via extern keyword.
What is differences between JavaScript and livescript?
JavaScript is LiveScript. It was renamed to gain popularity. The JavaScript name was rejected by then Sun Microsystems who owned the Java trademark. Now the official name is ECMAScript, while it is still commonly referred to as JavaScript. In Internet Explorer it is called JScript. Different names, same language.
When a local variable has the same name as a field the local variable's name does this to the field's name?
When a local variable has the same name as a field, it shadows the field's name within its scope. This means that within that scope, any reference to the variable name will refer to the local variable rather than the field. As a result, the field becomes inaccessible directly by that name until the scope of the local variable ends. This can lead to confusion and potential bugs if not managed properly.
In order for a function to be one-to-one no two independent variable values may yield the same value of the dependent variable?
True
What is the name of the variable that stays the same?
A constant is a variable that doesn't change in value throughout the program's execution.
Is -7 a function?
Any number can be considered a function - a constant function, to be more precise. That is, the value of the function is the same for all values of "x" or whatever you call your independent variable or variables.
How do you clear a variable in PHP?
You can unset a variable in PHP by setting it to NULL. You can set a variable to NULL by declaring it normally, or using the function "unset()". Both methods are acceptable, and accomplish the same thing. Examples of both: ---- $variable = NULL; ---- unset($variable); ----
What is function parameter or argument in JavaScript?
It is an input to the function. You can use them to apply the same operation to different inputs. You create a function with parameters by putting the parameters in a comma separated list in the parentheses after a function name. For example: function myFunctionWithParameters(parameter1,parameter2,parameter3) { //Code to execute } Within the code, you refer to them as if they were variables that were assigned to the parameter name. For example: function squareNumber(myNumber) { return myNumber*myNumber; } Parameter names follow the same rules as variable names: they cannot start with a number, they cannot have a dot in them, etc. To call a function with parameters, you simply put the values of the parameters within the parentheses. You can also use variable names to refer to the value to pass to the function. For example: var theNumber=10;alert(squareNumber(theNumber)); //Shows alert box displaying 100 Note that parameters can be passed in as any type. For example: function add(a,b) { return a+b; } alert(add(1,2)); //Shows alert box displaying 3 alert(add("foo","bar")); //Shows alert box displaying foobar
