{"id":4860,"date":"2021-08-24T04:00:34","date_gmt":"2021-08-24T04:00:34","guid":{"rendered":"https:\/\/studysection.com\/blog\/?p=4860"},"modified":"2021-08-24T04:52:55","modified_gmt":"2021-08-24T04:52:55","slug":"destructuring-assignment-javascript","status":"publish","type":"post","link":"https:\/\/studysection.com\/blog\/destructuring-assignment-javascript\/","title":{"rendered":"Destructuring assignment – Javascript"},"content":{"rendered":"

Destructuring assignment:<\/h2>\n

It\u2019s a Javascript expression that makes the assignment of the values of arrays or objects by unpacking them into new variables in an easier way.<\/p>\n

    \n
  1. Array Destructuring in Javascript<\/strong>
    \nExample:
    \n\tconst dummyarr = [\u2018a\u2019,\u2019b\u2019,\u2019c\u2019,\u2019d\u2019,8];
    \n\tlet [val1,val2,val3,val4] = dummyarr;<\/code><\/p>\n

    \tOutput:
    \n\t\tconsole.log(val1);\t=>\ta
    \n\t\tconsole.log(val2); \t=> \tb
    \n\t\tconsole.log(val3); \t=> \tc<\/code>\n<\/li>\n

  2. Object Destructuring<\/strong>
    \nExample:
    \nconst person = {
    \nfname : \u201cAbc\u201d,
    \nlname: \u201cDef\u201d,
    \nage: 24
    \n}
    \nlet {fname,lname,age} = person;<\/code>
    \nIf you print these variables, they will return the values assigned to the person object.
    \nAnd if you want to use variable names different than those mentioned in the object<\/a> properties, in that case, you will need to specify the variable name while declaring them otherwise it will return \u201cundefined\u201d.
    \nFor example:
    \nlet {fname:firstname,lastname,age} = person;
    \nconsole.log(firstname);\t=> Abc
    \nconsole.log(lastname); => undefined
    \nconsole.log(age); \t=> 24<\/code>\n<\/li>\n<\/ol>\n

    So, the destructuring assignment makes it easier to assign the array or object values to different variables. <\/p>\n

    People having good knowledge of Financial accounting can get an Accounting Certification<\/a> from StudySection to increase their chances of getting a job in this field. You can get a foundation level certification if you are new to Financial accounting or you can go for advanced level certification if you have expert level skills in Financial accounting.<\/em><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"

    Destructuring assignment: It\u2019s a Javascript expression that makes the assignment of the values of arrays or objects by unpacking them<\/p>\n","protected":false},"author":1,"featured_media":4861,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[199],"acf":[],"yoast_head":"\nDestructuring assignment - Javascript - StudySection Blog<\/title>\n<meta name=\"description\" content=\"It\u2019s a javascript expression that makes the assignment of the values of arrays by unpacking them into new variables in an easier way.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/studysection.com\/blog\/destructuring-assignment-javascript\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Destructuring assignment - 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