is not a function - jQuery error

Question

I have the jQuery loaded fine  I ve quadruple-checked  though I m getting this error in FireBug    is not a function  and my code doesn t work   Here s my code    lt script type  text javascript  gt         ol li nth-child 1    addClass  olli1           ol li nth-child 2    addClass  olli2           ol li nth-child 3    addClass  olli3           ol li nth-child 4    addClass  olli4           ol li nth-child 5    addClass  olli5           ol li nth-child 6    addClass  olli6           ol li nth-child 7    addClass  olli7           ol li nth-child 8    addClass  olli8           ol li nth-child 9    addClass  olli9           ol li nth-child 10    addClass  olli10           ol li nth-child 11    addClass  olli11           ol li nth-child 12    addClass  olli12           ol li nth-child 13    addClass  olli13           ol li nth-child 14    addClass  olli14           ol li nth-child 15    addClass  olli15           ol li nth-child 16    addClass  olli16           ol li nth-child 17    addClass  olli17           ol li nth-child 18    addClass  olli18           ol li nth-child 19    addClass  olli19           ol li nth-child 20    addClass  olli20      lt  script gt

User · Answer

lt script type  text javascript  gt         ol li nth-child 1    addClass  olli1           ol li nth-child 2    addClass  olli2           ol li nth-child 3    addClass  olli3           ol li nth-child 4    addClass  olli4           ol li nth-child 5    addClass  olli5           ol li nth-child 6    addClass  olli6           ol li nth-child 7    addClass  olli7           ol li nth-child 8    addClass  olli8           ol li nth-child 9    addClass  olli9           ol li nth-child 10    addClass  olli10           ol li nth-child 11    addClass  olli11           ol li nth-child 12    addClass  olli12           ol li nth-child 13    addClass  olli13           ol li nth-child 14    addClass  olli14           ol li nth-child 15    addClass  olli15           ol li nth-child 16    addClass  olli16           ol li nth-child 17    addClass  olli17           ol li nth-child 18    addClass  olli18           ol li nth-child 19    addClass  olli19           ol li nth-child 20    addClass  olli20      lt  script gt    change this to        lt script type  text javascript  gt          jQuery document  ready function                  ol li nth-child 1    addClass  olli1               ol li nth-child 2    addClass  olli2               ol li nth-child 3    addClass  olli3               ol li nth-child 4    addClass  olli4               ol li nth-child 5    addClass  olli5               ol li nth-child 6    addClass  olli6               ol li nth-child 7    addClass  olli7               ol li nth-child 8    addClass  olli8               ol li nth-child 9    addClass  olli9               ol li nth-child 10    addClass  olli10               ol li nth-child 11    addClass  olli11               ol li nth-child 12    addClass  olli12               ol li nth-child 13    addClass  olli13               ol li nth-child 14    addClass  olli14               ol li nth-child 15    addClass  olli15               ol li nth-child 16    addClass  olli16               ol li nth-child 17    addClass  olli17               ol li nth-child 18    addClass  olli18               ol li nth-child 19    addClass  olli19               ol li nth-child 20    addClass  olli20                   lt  script gt

User · Answer

In my case I was using jquery on my typescript file   import   as   from  jquery     But this line gives me back an Object   and it does not allow to use as a function  I can not use    my-selector     It solves my problem this lines  I hope it could help anyone else   import   as JQuery from  jquery   const     JQuery default

User · Answer

There are quite lots of answer based on situation   1  Try to replace     with  jQuery   2  Check that code you are executed are always below the main jquery script    lt script src  http   code jquery com jquery-1 11 3 min js  gt  lt  script gt   lt script type  text javascript  gt  jQuery document  ready function          lt  script gt    3  Pass   into the function and add  jQuery  as a main function like below    lt script type  text javascript  gt  jQuery document  ready function           lt  script gt

User · Answer

That error kicks in when you have forgot to include the jQuery library in your page or there is conflict between libraries - for example you be using any other javascript library on your page   Take a look at this for more info    Using jQuery with other libraries

User · Answer

There are two possible reasons for that error    your jquery script file referencing is not valid try to put your jquery code in document ready  like this     document  ready function         your code            cheers

User · Answer

It s really hard to tell  but one of the 9001 ads on the page may be clobbering the   object   jQuery provides the global jQuery object  which is present on your page    You can do the following to  get    back   jQuery document  ready function              Your code here       If you think you re having jQuery problems  please use the debug  non-production  versions of the library   Also  it s probably not best to be editing a live site like that

User · Answer

As RPM1984 refers to  this is mostly likely caused by the fact that your script is loading before jQuery is loaded

User · Answer

When jQuery is not present you get   is undefined and not your message   Did you check if you don t have a variable called   somewhere before your code  Inspect the value of   in firebug to see what it is   Slightly out of the question  but I can t resist to write a shorter code to your class assignment       var i   1         ol li   each function              this  addClass  olli    i

User · Answer

In Wordpress jQuery noConflict   is called on the jQuery file it includes  scroll to the bottom of the file it s including for jQuery to see this   which means   doesn t work  but jQuery does  so your code should look like this    lt script type  text javascript  gt    jQuery function          for var i 0  i  lt   20  i              ol li nth-child     i        addClass  olli    i          lt  script gt

User · Answer

Use jQuery for    I tried and work

[javascript] $ is not a function - jQuery error

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