JavaScript Fundamentals


Initially published on 22/06/2015
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Press F12 when your Chrome Browser is open. OR Right click and click on Inspect element(All Browsers).At the Lower end of the page, click on console button(next to Audits button).
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StringInput your name inbetween inverted commas "" and press enter. > "SACHIN" <- "SACHIN" We will get an output as SACHIN. Try giving the string without quotes > SACHIN We will get an uncaught: ReferenceError String Length To calculate the String length add .length and press enter. > "SACHIN".length <- 6 Math operations Math operations such as addition, subtraction, multiplication and division can be done in console. > 3+5 <- 8 > 7-2 <- 5 > 6*6 <- 36 > 8/4 <- 2 Interactivity Confirm command gives a pop up at the top of the page. > confirm("I have arrived");                            //press enter If you click OK then the output will be <- true Prompt command creates a pop up with a question answer box. > prompt("What is your name ?"); If you key in the answer and press enter we will get an output that was given in the answer box. <- God of Off-Side (* The above exercises are available at codeacademy)

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