• salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is JavaScript conditional statement ?
    posted:Saturday 13th of April 2024 06:39:13 PM

  • 0.14min

    • the example to be continued
    read more....the example to be continued

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is a JavaScript conditional statement?
    posted:Saturday 13th of April 2024 06:35:57 PM

  • 0.41min

    • the above example is the result of example of JavaScript conditional statements😀 read more....the above example is the result of example of JavaScript conditional statements😀

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    255
  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is a JavaScript conditional statement?
    posted:Saturday 13th of April 2024 06:33:19 PM

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    • read more....

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    this is prompt() function
    posted:Wednesday 10th of April 2024 07:37:56 PM

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    this is prompt() function
    posted:Wednesday 10th of April 2024 07:37:56 PM

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    this is confim() function
    posted:Wednesday 10th of April 2024 07:37:16 PM

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    this is confim() function
    posted:Wednesday 10th of April 2024 07:37:14 PM

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    this is alert() function
    posted:Wednesday 10th of April 2024 07:36:11 PM

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  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is a function in JavaScript?
    posted:Thursday 4th of April 2024 06:04:26 PM

  • 17.48min


    • when a soccer player is kicking a ball, when a driver is driving a car , when a child plays a     ....read more....
    when a soccer player is kicking a ball, when a driver is driving a car , when a child plays all the mentioned are "functions" meaning "tasks".
    in JavaScript a function is a predefined task that does a specific job oly whenever triggered.for example if there is a function that outputs a product of any give two numbers(2*5) when given as input it will always do that when triggered irrigardless of how many times it does.
    function syntax:
    function myfunction(){
    return 2*5;
    }
    looking at the example above we can note the following:
    1.the function has the "function" keyword this is a mandatory word to be declared whenever a user or programmer wants to create a function.
    2.the function keyword is followed by its name "myfunction"; this is the name of a function.it identifies a function from other functions.
    3.parenthesis() this looks like a curved legs in which arguments or parameters can be loaded. arguments can be of any number up to 256 parameters.
    4.immedietely after parenthesis is an opening bracket "{", this is used contain the body of a function.
    5. "return" keyword, this is used to return to the calling program. the main task of this function is to return the product of two numbers which are "2 and 5".
    6."}" closing bracket is used to close the body of a function.

    NOTE:
    the name of a function is unique thats what identifies it from any other function.
    function can be defined within the BODY tags or HEAD tags;it resides within SCRIPT tags.

    sometimes a function is said to be "anonymous" the following syntax shows an anonymous function.
    function(){
    return 2*5;
    }
    this type of a function does not have a name attached to it.it is mostly used to define events.for example.
    document.getElementById("button1").onclick=function(){
    return 2*5;
    }
    the above function has assigned an "anonymous" aka "without a name" function to an "onClick" event so that when a "button" of id "button1" is clicked ; should return product of "2*5".
    NOTE:
    you can call a function within another function. or declare a function within another function.
    a function just like a variable can be assigned to variable if it "returns" value.
    a function can also be an argument in another function.









    window.onload=function(){
    // whatever
    }
    is an EVENT that executes immedietely when a window(browser) is loaded or refreshed this helps to initialize other inner functions or events prior their execution.

    function say(){
    document.write("hello everybody");
    }
    this is a defined function which prints "hello everybody" when called.
    document.getElementById("button1").onclick=function(){
    say();
    }
    document
    is a parentNode of all elements visible on a web browser this is to say every element sits on top of a document; checkboxes, radio buttons,images, etc. to access any of those elements; document should be the first starting point.
    getElementById("button1")
    this is a JavaScript predefined function that is used to access elemnts by their IDs; an ID works as a parameter to a function.
    onclick=function(){
    say();
    }
    once an element has been accessed through its ID;it can be attached to an EVENT suvh as onclick event.onclick event triggers a task when a certain element is clicked such as button . in this case say() function is executed.

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    248
  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is a data type in JavaScript
    posted:Thursday 4th of April 2024 06:01:53 PM

  • 11.68min


    • in strictly typed programming languages such as C++,C ,C#(sharp) and Java; variables are decl     ....read more....
    in strictly typed programming languages such as C++,C ,C#(sharp) and Java; variables are declared that is there is often a keyword like
    COMPILING PROGRAMS(Java,C++,C,C#)
    int a=12
    float b=23.5
    string c="hello world"
    char x="x"

    JavaScript
    a=12
    b=23.5
    c="hello world"
    x="x"

    but JavaScript is an exception because every variables need not be assigned a keyword;
    JavaScript automatically assigns an equivalent space on a memory location.
    for example an integer in c++(C plus plus) program occupies 32 bit space;
    that is 4 bytes and a char(character) meaning "1" symbol occupies 8 bits(1 byte).

    declaring a variable;e helps a compile make proper allocation of a variable prior execution hence increasing
    program speed and efficiency on compiled programs(Java,c++,c and c#). but as for JavaScript the program is
    allocated on the go ; that means as the program runs or executed hence producing slower programs.

    JavaScript is exceptionally flexible a user can assign a variable an anonymous function that is a function without a name or whose name shall be declared later.
    in strictly typed programming languages like C++; an array only contains data of the same type but as for JavaScript it can contain data of any type and used however it must.
    for example

    var scriptarray=[1,2.4,"hello world","x"]

    the above example declares an array named "scriptarray" it contains four elements of different datatypes first one is an integer, second one is a floating point, third one is a string, fourth one is a character and fifth one is a function.
    you access arrays through indexing scriptarray[0-n]; starting from 0 to last number.
    scriptarray[0] will display 1
    scriptarray[1] will display 2.4
    scriptarray[2] will display "hello world"
    scriptarray[3] will display "x"
    scriptarray[0] will display 1

    object is another data type that cab be used in JavaScript it is used to contain other data types
    var d=new Object();
    d.name="your name";
    d.surname="your surname";
    d.age="your age";
    d.likes=function(){
    alert("i like food");
    }
    you declare object by writing a "new" keyword followed by Object() as an assignment to a variable;
    when assigning properties to an object you use "." operator
    for example
    d.name="your name"
    assigns a name to an object

    NB: you can even assign a function or other objects!

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    247
  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is a data type in JavaScript
    posted:Thursday 4th of April 2024 06:01:06 PM

  • 11.68min


    • in strictly typed programming languages such as C++,C ,C#(sharp) and Java; variables are decl     ....read more....
    in strictly typed programming languages such as C++,C ,C#(sharp) and Java; variables are declared that is there is often a keyword like
    COMPILING PROGRAMS(Java,C++,C,C#)
    int a=12
    float b=23.5
    string c="hello world"
    char x="x"

    JavaScript
    a=12
    b=23.5
    c="hello world"
    x="x"

    but JavaScript is an exception because every variables need not be assigned a keyword;
    JavaScript automatically assigns an equivalent space on a memory location.
    for example an integer in c++(C plus plus) program occupies 32 bit space;
    that is 4 bytes and a char(character) meaning "1" symbol occupies 8 bits(1 byte).

    declaring a variable;e helps a compile make proper allocation of a variable prior execution hence increasing
    program speed and efficiency on compiled programs(Java,c++,c and c#). but as for JavaScript the program is
    allocated on the go ; that means as the program runs or executed hence producing slower programs.

    JavaScript is exceptionally flexible a user can assign a variable an anonymous function that is a function without a name or whose name shall be declared later.
    in strictly typed programming languages like C++; an array only contains data of the same type but as for JavaScript it can contain data of any type and used however it must.
    for example

    var scriptarray=[1,2.4,"hello world","x"]

    the above example declares an array named "scriptarray" it contains four elements of different datatypes first one is an integer, second one is a floating point, third one is a string, fourth one is a character and fifth one is a function.
    you access arrays through indexing scriptarray[0-n]; starting from 0 to last number.
    scriptarray[0] will display 1
    scriptarray[1] will display 2.4
    scriptarray[2] will display "hello world"
    scriptarray[3] will display "x"
    scriptarray[0] will display 1

    object is another data type that cab be used in JavaScript it is used to contain other data types
    var d=new Object();
    d.name="your name";
    d.surname="your surname";
    d.age="your age";
    d.likes=function(){
    alert("i like food");
    }
    you declare object by writing a "new" keyword followed by Object() as an assignment to a variable;
    when assigning properties to an object you use "." operator
    for example
    d.name="your name"
    assigns a name to an object

    NB: you can even assign a function or other objects!

    view comments

    🧑
    246
  • salemone;computer programmer(joined@Saturday 29th of July 2023)
    svm(1996)
    what is JavaScript(AKA not Java)
    posted:Wednesday 28th of February 2024 09:09:30 PM

  • 5.3min


    • JavaScript is a programming language just as Java is a programming language.Javascript is fro     ....read more....
    JavaScript is a programming language just as Java is a programming language.Javascript is front end programming language that works on a web browser(client). when a user clicks an images and then it rotates or displays more images ; that somehow the work of JavaScript in most cases , when you launch a video call on a web that is JavaScript doing the work.

    it is an interactive language on a client browser enableing one to play online games, music download, submitting tyhe forms, clicking the buttons to be handled b backend langauege.
    with the arrival of nodejs(a framework that encoperates both clicnt side and server side on JavaScript), JavaScript can work as a both server side language and client side language which was impossible prior.

    Java is a high level programming language that can work as a client and server side language this language was designed to be general purpose , meaning it can run on embeddd systems(smarphone, tv remotes, fridges etc) and huge computers . it is the language that initially developed android operating system.

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    245
    • 12
    12

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