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Javascript function


A function is a block of statements, which is used to perform a specific task.In javascript functions are defined with the function keyword. There are 3 ways to create a function. 1. by declaration. 2. by function expression. 3. by constructor. (good for…

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Loops Allow to repeat block code, until the given condition is true. In Javascript we have three basics types loops are available – for while do while for loop // for for (var i = 0; i <…

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Secret of falsy value


As we know true and false are related to boolean data type. Zero, empty string, undefined, null, NaN are falsy values. All non-empty things and true are Truthy values. But going to deep inside into falsy value. We need…

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If, else, switch are conditional statement. Condition statement change flow of the program according to test cases. So if block contain test expression inside parenthesis. if test expression is evaluated is true then body of if executed and…

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Type detection


Type detection It is a way by which we can identify the type of data. We know that data type can be three type. So if we are working on data sometime we need to identify datatype of…

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Operators in javascript


Operators An Operator is a symbol that used for specific task. That task may be related to math or logical operation. Operators works on operands. Ex-  var sum = 2 + 3; Here 2, 3 are operands and…

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Variables and data types in javascript


Variables are named memory location that holds a different – different type of value. Whereas It is a classification of data which tells the compiler or interpreter how the programmer intends to use the data. In javascript, we…

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