jQuery selector symbol analysis
jQuery is a cross-browser JavaScript library that simplifies operations between HTML and JavaScript. We often use it during programming development, so in this chapter we will briefly introduce to you the meaning of some symbols in jQuery selectors.
Space: $('#phpernote span')
means to get all span nodes and all descendants under id=phpernote.
Greater than sign: $('#phpernote > span')
means to obtain all the first-level span nodes with id=phpernote, that is, the first generation, and will not be obtained for other generations.
Plus sign: $('#phpernote + .com')
means to obtain the next class=com sibling node of the id=phpernote node, which is equivalent to the next() method.
Tilde sign: $('#phpernote ~ span')
means to obtain all span sibling nodes behind the node with id=phpernote, which is equivalent to the nextAll() method.
The above is the symbol analysis in several jQuery selectors, I hope it can help everyone.
Related recommendations:
What is the use of the ampersand symbol before the php function
How to use the reference ampersand symbol? Detailed explanation of usage examples of php & symbol
10 recommended articles about operation symbols
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