Remember, Javascript is not a strongly typed language. While using variables in Javascript, don\u2019t bother about the type of data a variable is storing, instead what the variable is storing. These variables can store anything – even functions!! Here are some examples on using variables in Javascript.<\/p>\n
var thisIsAString = 'This is a string';\r\nvar alsoAString = '25';\r\nvar isANumber = 25;\r\nvar isEqual = (alsoAString==isANumber); \/\/ This is true, they are both 25.\r\nvar isEqual = (alsoAString===isANumber); \/\/ False one is a number,\r\n \/\/ the other a string.\r\n\r\nvar concat=alsoAString + isANumber; \/\/ concat is now 2525\r\nvar addition=isANumber + isANumber; \/\/ addition is now 50\r\nvar alsoANumber=3.05; \/\/ is equal to 3.05 (usually).\r\nvar floatError=0.06+0.01; \/\/ is equal to 0.06999999999999999\r\nvar anExponent=1.23e+3; \/\/ is equal to 1230\r\n\r\nvar hexadecimal = 0xff; \/\/ is equal to 255.\r\nvar octal = 0377; \/\/ is equal to 255.\r\n\r\nvar isTrue = true; \/\/ This is a boolean, it can be true or false.\r\nvar isFalse= false; \/\/ This is a boolean, it can be true or false\r\n\r\nvar isArray = [0, 'one', 2, 3, '4', 5]; \/\/ This is an array.\r\nvar four = isArray[4]; \/\/ assign a single array element to a variable.\r\n \/\/ in this case four = '4'\r\n\r\nvar isObject = { 'color': 'blue', \/\/ This is a Javascript object\r\n 'dog': 'bark',\r\n 'array': [0,1,2,3,4,5],\r\n 'myfunc': function () { alert('do something!'); }\r\n }\r\n\r\nvar dog = isObject.dog; \/\/ dog now stores the string 'bark';\r\nisObject.myfunc(); \/\/ creates an alert box with the value "do something!"\r\nvar someFunction = function() {\r\n return "I am a function!";\r\n}\r\nvar alsoAFunction = someFunction; \/\/No () so alsoAFunction becomes a function\r\nvar result = alsoAFunction(); \/\/ alsoAFunction is executed here because ()\r\n \/\/ executes the function so result stores the\r\n \/\/ return value of the function which is\r\n \/\/ "I am a function!"<\/pre>\n","protected":false},"excerpt":{"rendered":"Remember, Javascript is not a strongly typed language. While using variables in Javascript, don\u2019t bother about the type of data a variable is storing, instead what the variable is storing. These variables can store anything – even functions!! Here are some examples on using variables in Javascript.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/posts\/4"}],"collection":[{"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/comments?post=4"}],"version-history":[{"count":2,"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/posts\/4\/revisions"}],"predecessor-version":[{"id":185,"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/posts\/4\/revisions\/185"}],"wp:attachment":[{"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/media?parent=4"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/categories?post=4"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/shivdev.com\/blog\/wp-json\/wp\/v2\/tags?post=4"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}