Use JQuery to add tag prompts to the search bar_jquery

A very simple function is to use the function of JQuery to surface some preset keywords when the user enters search characters in the search bar. In addition to surprising the user, There is also a way to simplify input for users. For example, it looks like the picture below:

The implementation method is very simple. First, load JQuery on your website, and then load the following JS file. Download it

Copy the code The code is as follows:

(function($){var globalTags=[];window.setGlobalTags=function(tags){globalTags=getTags(tags);};function getTags (tags){var tag,i,goodTags=[];for(i=0;igoodTags.push(tag.toLowerCase());}
return goodTags;}
$.fn.tagSuggest=function(options){var defaults={ 'matchClass':'tagMatches','tagContainer':'span','tagWrap':'span','sort':true,'tags':null,'url':null,'delay':0,'separator ':' '};var i,tag,userTags=[],settings=$.extend({},defaults,options);if(settings.tags){userTags=getTags(settings.tags);}else{userTags =globalTags;}
return this.each(function(){var tagsElm=$(this);var elm=this;var matches,fromTab=false;var suggestionsShow=false;var workingTags=[];var currentTag= {"position":0,tag:""};var tagMatches=document.createElement(settings.tagContainer);function showSuggestionsDelayed(el,key){if(settings.delay){if(elm.timer)clearTimeout(elm. timer);elm.timer=setTimeout(function(){showSuggestions(el,key);},settings.delay);}else{showSuggestions(el,key);}}
function showSuggestions(el,key){ workingTags=el.value.split(settings.separator);matches=[];var i,html='',chosenTags={},tagSelected=false;currentTag={position:currentTags.length-1,tag:'' };for(i=0;ichosenTags[currentTags[i].toLowerCase()]=true;}
if(currentTag.tag){if(settings. url){$.ajax({'url':settings.url,'dataType':'json','data':{'tag':currentTag.tag},'async':false,'success':function( m){matches=m;}});}else{for(i=0;imatches=$.grep(matches,function(v,i){return!chosenTags[v.toLowerCase()];});if(settings.sort){ matches=matches.sort();}
for(i=0;i' matches[i] ' ' settings.tagWrap '>';}
tagMatches.html(html);suggestionsShow=!!(matches.length);}else{hideSuggestions();}}
function hideSuggestions(){ tagMatches.empty();matches=[];suggestionsShow=false;}
function setSelection(){var v=tagsElm.val();if(v==tagsElm.attr('title')&&tagsElm.is( '.hint'))v='';currentTags=v.split(settings.separator);hideSuggestions();}
function chooseTag(tag){var i,index;for(i=0;iif(index==workingTags.length-1) tag=tag settings.separator;workingTags[i]=tag;tagsElm.val(workingTags.join(settings.separator));tagsElm.blur().focus();setSelection();}
function handleKeys(ev ){fromTab=false;var type=ev.type;var resetSelection=false;switch(ev.keyCode){case 37:case 38:case 39:case 40:{hideSuggestions();return true;}
case 224:case 17:case 16:case 18:{return true;}
case 8:{if(this.value==''){hideSuggestions();setSelection();return true;}else{type= 'keyup';resetSelection=true;showSuggestionsDelayed(this);}
break;}
case 9:case 13:{if(suggestionsShow){chooseTag(matches[0]);fromTab=true;return false; }else{return true;}}
case 27:{hideSuggestions();setSelection();return true;}
case 32:{setSelection();return true;}}
if(type= ='keyup'){switch(ev.charCode){case 9:case 13:{return true;}}
if(resetSelection){setSelection();}
showSuggestionsDelayed(this,ev.charCode); }}
tagsElm.after(tagMatches).keypress(handleKeys).keyup(handleKeys).blur(function(){if(fromTab==true||suggestionsShow){fromTab=false;tagsElm.focus();} });tagMatches=$(tagMatches).click(function(ev){if(ev.target.nodeName==settings.tagWrap.toUpperCase()&&$(ev.target).is('._tag_suggestion')){ chooseTag(ev.target.innerHTML);}}).addClass(settings.matchClass);setSelection();});};})(jQuery);

The next step is to edit your own keywords. The method here is to edit it yourself, and there are many methods to directly query the WordPress database. But that makes it look very professional. For me, the search function on the site is not very useful. It is obviously not worth complicating the prompt function for a search that has not been used a few times, so it is better to edit some important keywords myself. The following code should also be integrated into the JS file of the website:

Copy the code The code is as follows:

You can see that the keywords above have been edited.
The last step is to specify the corresponding search bar. For example, "#tags" in the code above determines this. Modify the ID of the search bar to suit it. In other words, you can add an id="tags" to the input of the search bar. Or you can modify the ID in the above code to adapt to the ID entered in your original search bar.
Of course, there is also the style setting of keywords. This is up to everyone’s preference and I will not list it here.
tag.js Package download