At the beginning of the bootstrap.js code file they have this
!function($) {
what does it mean?
At the beginning of the bootstrap.js code file they have this !function($) { what
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At the beginning of the bootstrap.js code file they have this
!function($) {
what does it mean?
If you code this:
function something() {something}, it’s a declaration of a function, but it does not invoke the function (you’d have to runsomething()later on).So, to actually invoke the function, you need to do something like
(function(){})();… “!function($) {}” is sort of an alternative to the wrapping the entire function in parens. The exclamation mark syntax is a shortcut to writing that. “!” turns the line into an expression that returnstrue.