我有一个搜索框，实际上效果很好。它的作用是你键入一些内容，如果它已经存在，它会显示主题。如果没有，它会将您发送到您可以打开此主题的页面。当您键入“ABC”或“A BC”时，它没关系，但是当您尝试键入“AB”然后尝试搜索时，它会给您一个错误，您需要输入至少3个字符，这很好。但它可以很容易地完成（“空间空间” - 计数3）。当然，您可以使用空格打开主题，但不希望计算空格。如，（你好世界）应该算作10个字符，而不是11个。如何排除空格被算作字符？这是我正在努力使其变得更好的一个项目，我自己并没有全部写完。
这是我的搜索框的所有javascript文件，我可能需要编辑但不知道如何：
<script type="text/javascript">
function formatText(tag) {
var Field = document.getElementById('entry_girdi');
var val = Field.value;
var selected_txt = val.substring(Field.selectionStart, Field.selectionEnd);
var before_txt = val.substring(0, Field.selectionStart);
var after_txt = val.substring(Field.selectionEnd, val.length);
Field.value += '[' + tag + '/]';
}
</script>
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c.mixin(d.prototype,{_processLocalData:function(a){this._mergeProcessedData(this._processData(a))},_loadPrefetchData:function(d){function e(a){var b=d.filter?d.filter(a):a,e=m._processData(b),f=e.itemHash,h=e.adjacencyList;m.storage&&(m.storage.set(g.itemHash,f,d.ttl),m.storage.set(g.adjacencyList,h,d.ttl),m.storage.set(g.thumbprint,n,d.ttl),m.storage.set(g.protocol,c.getProtocol(),d.ttl)),m._mergeProcessedData(e)}var f,h,i,j,k,l,m=this,n=b+(d.thumbprint||"");return this.storage&&(f=this.storage.get(g.thumbprint),h=this.storage.get(g.protocol),i=this.storage.get(g.itemHash),j=this.storage.get(g.adjacencyList)),k=f!==n||h!==c.getProtocol(),d=c.isString(d)?{url:d}:d,d.ttl=c.isNumber(d.ttl)?d.ttl:864e5,i&&j&&!k?(this._mergeProcessedData({itemHash:i,adjacencyList:j}),l=a.Deferred().resolve()):l=a.getJSON(d.url).done(e),l},_transformDatum:function(a){var b=c.isString(a)?a:a[this.valueKey],d=a.tokens||c.tokenizeText(b),e={value:b,tokens:d};return c.isString(a)?(e.datum={},e.datum[this.valueKey]=a):e.datum=a,e.tokens=c.filter(e.tokens,function(a){return!c.isBlankString(a)}),e.tokens=c.map(e.tokens,function(a){return a.toLowerCase()}),e},_processData:function(a){var b=this,d={},e={};return c.each(a,function(a,f){var g=b._transformDatum(f),h=c.getUniqueId(g.value);d[h]=g,c.each(g.tokens,function(a,b){var d=b.charAt(0),f=e[d]||(e[d]=[h]);!~c.indexOf(f,h)&&f.push(h)})}),{itemHash:d,adjacencyList:e}},_mergeProcessedData:function(a){var b=this;c.mixin(this.itemHash,a.itemHash),c.each(a.adjacencyList,function(a,c){var d=b.adjacencyList[a];b.adjacencyList[a]=d?d.concat(c):c})},_getLocalSuggestions:function(a){var b,d=this,e=[],f=[],g=[];return c.each(a,function(a,b){var d=b.charAt(0);!~c.indexOf(e,d)&&e.push(d)}),c.each(e,function(a,c){var e=d.adjacencyList[c];return e?(f.push(e),(!b||e.length<b.length)&&(b=e),void 0):!1}),f.length<e.length?[]:(c.each(b,function(b,e){var 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d=this;c.bindAll(this),this.specialKeyCodeMap={9:"tab",27:"esc",37:"left",39:"right",13:"enter",38:"up",40:"down"},this.$hint=a(b.hint),this.$input=a(b.input).on("blur.tt",this._handleBlur).on("focus.tt",this._handleFocus).on("keydown.tt",this._handleSpecialKeyEvent),c.isMsie()?this.$input.on("keydown.tt keypress.tt cut.tt paste.tt",function(a){d.specialKeyCodeMap[a.which||a.keyCode]||c.defer(d._compareQueryToInputValue)}):this.$input.on("input.tt",this._compareQueryToInputValue),this.query=this.$input.val(),this.$overflowHelper=e(this.$input)}function e(b){return a("<span></span>").css({position:"absolute",left:"-9999px",visibility:"hidden",whiteSpace:"nowrap",fontFamily:b.css("font-family"),fontSize:b.css("font-size"),fontStyle:b.css("font-style"),fontVariant:b.css("font-variant"),fontWeight:b.css("font-weight"),wordSpacing:b.css("word-spacing"),letterSpacing:b.css("letter-spacing"),textIndent:b.css("text-indent"),textRendering:b.css("text-rendering"),textTransform:b.css("text-transform")}).insertAfter(b)}function f(a,b){return a=(a||"").replace(/^\s*/g,"").replace(/\s{2,}/g," "),b=(b||"").replace(/^\s*/g,"").replace(/\s{2,}/g," "),a===b}return c.mixin(b.prototype,d,{_handleFocus:function(){this.trigger("focused")},_handleBlur:function(){this.trigger("blured")},_handleSpecialKeyEvent:function(a){var b=this.specialKeyCodeMap[a.which||a.keyCode];b&&this.trigger(b+"Keyed",a)},_compareQueryToInputValue:function(){var 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b=this.$menu.height()+parseInt(this.$menu.css("paddingTop"),10)+parseInt(this.$menu.css("paddingBottom"),10),c=this.$menu.scrollTop(),d=a.position().top,e=d+a.outerHeight(!0);0>d?this.$menu.scrollTop(c+d):e>b&&this.$menu.scrollTop(c+(e-b))},destroy:function(){this.$menu.off(".tt"),this.$menu=null},isVisible:function(){return this.isOpen&&!this.isEmpty},closeUnlessMouseIsOverDropdown:function(){this.isMouseOverDropdown||this.close()},close:function(){this.isOpen&&(this.isOpen=!1,this.isMouseOverDropdown=!1,this._hide(),this.$menu.find(".tt-suggestions > .tt-suggestion").removeClass("tt-is-under-cursor"),this.trigger("closed"))},open:function(){this.isOpen||(this.isOpen=!0,!this.isEmpty&&this._show(),this.trigger("opened"))},setLanguageDirection:function(a){var b={left:"0",right:"auto"},c={left:"auto",right:" 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class="tt-suggestion">%body</div>',n=this.$menu.find("."+l);0===n.length&&(h=a(f.suggestionsList).css(g.suggestionsList),n=a("<div></div>").addClass(l).append(b.header).append(h).append(b.footer).appendTo(this.$menu)),d.length>0?(this.isEmpty=!1,this.isOpen&&this._show(),i=document.createElement("div"),j=document.createDocumentFragment(),c.each(d,function(c,d){d.dataset=b.name,e=b.template(d.datum),i.innerHTML=m.replace("%body",e),k=a(i.firstChild).css(g.suggestion).data("suggestion",d),k.children().each(function(){a(this).css(g.suggestionChild)}),j.appendChild(k[0])}),n.show().find(".tt-suggestions").html(j)):this.clearSuggestions(b.name),this.trigger("suggestionsRendered")},clearSuggestions:function(a){var b=a?this.$menu.find(".tt-dataset-"+a):this.$menu.find('[class^="tt-dataset-"]'),c=b.find(".tt-suggestions");b.hide(),c.empty(),0===this._getSuggestions().length&&(this.isEmpty=!0,this._hide())}}),b}(),l=function(){function b(a){var b,d,f;c.bindAll(this),this.$node=e(a.input),this.datasets=a.datasets,this.dir=null,this.eventBus=a.eventBus,b=this.$node.find(".tt-dropdown-menu"),d=this.$node.find(".tt-query"),f=this.$node.find(".tt-hint"),this.dropdownView=new k({menu:b}).on("suggestionSelected",this._handleSelection).on("cursorMoved",this._clearHint).on("cursorMoved",this._setInputValueToSuggestionUnderCursor).on("cursorRemoved",this._setInputValueToQuery).on("cursorRemoved",this._updateHint).on("suggestionsRendered",this._updateHint).on("opened",this._updateHint).on("closed",this._clearHint).on("opened closed",this._propagateEvent),this.inputView=new j({input:d,hint:f}).on("focused",this._openDropdown).on("blured",this._closeDropdown).on("blured",this._setInputValueToQuery).on("enterKeyed tabKeyed",this._handleSelection).on("queryChanged",this._clearHint).on("queryChanged",this._clearSuggestions).on("queryChanged",this._getSuggestions).on("whitespaceChanged",this._updateHint).on("queryChanged whitespaceChanged",this._openDropdown).on("queryChanged whitespaceChanged",this._setLanguageDirection).on("escKeyed",this._closeDropdown).on("escKeyed",this._setInputValueToQuery).on("tabKeyed upKeyed downKeyed",this._managePreventDefault).on("upKeyed downKeyed",this._moveDropdownCursor).on("upKeyed downKeyed",this._openDropdown).on("tabKeyed leftKeyed rightKeyed",this._autocomplete)}function e(b){var c=a(g.wrapper),d=a(g.dropdown),e=a(b),f=a(g.hint);c=c.css(h.wrapper),d=d.css(h.dropdown),f.css(h.hint).css({backgroundAttachment:e.css("background-attachment"),backgroundClip:e.css("background-clip"),backgroundColor:e.css("background-color"),backgroundImage:e.css("background-image"),backgroundOrigin:e.css("background-origin"),backgroundPosition:e.css("background-position"),backgroundRepeat:e.css("background-repeat"),backgroundSize:e.css("background-size")}),e.data("ttAttrs",{dir:e.attr("dir"),autocomplete:e.attr("autocomplete"),spellcheck:e.attr("spellcheck"),style:e.attr("style")}),e.addClass("tt-query").attr({autocomplete:"off",spellcheck:!1}).css(h.query);try{!e.attr("dir")&&e.attr("dir","auto")}catch(i){}return e.wrap(c).parent().prepend(f).append(d)}function f(a){var b=a.find(".tt-query");c.each(b.data("ttAttrs"),function(a,d){c.isUndefined(d)?b.removeAttr(a):b.attr(a,d)}),b.detach().removeData("ttAttrs").removeClass("tt-query").insertAfter(a),a.remove()}var g={wrapper:'<span class="twitter-typeahead"></span>',hint:'<input class="tt-hint" type="text" autocomplete="off" spellcheck="off" disabled>',dropdown:'<span class="tt-dropdown-menu"></span>'},h={wrapper:{position:"relative",display:"inline-block"},hint:{position:"absolute",top:"0",left:"0",borderColor:"transparent",boxShadow:"none"},query:{position:"relative",verticalAlign:"to1p",backgroundColor:"transparent"},dropdown:{position:"absolute",top:"100%",left:"0",zIndex:"100",display:"none"}};return c.isMsie()&&c.mixin(h.query,{backgroundImage:"url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)"}),c.isMsie()&&c.isMsie()<=7&&(c.mixin(h.wrapper,{display:"inline",zoom:"1"}),c.mixin(h.query,{marginTop:"-1px"})),c.mixin(b.prototype,d,{_managePreventDefault:function(a){var b,c,d=a.data,e=!1;switch(a.type){case"tabKeyed":b=this.inputView.getHintValue(),c=this.inputView.getInputValue(),e=b&&b!==c;break;case"upKeyed":case"downKeyed":e=!d.shiftKey&&!d.ctrlKey&&!d.metaKey}e&&d.preventDefault()},_setLanguageDirection:function(){var a=this.inputView.getLanguageDirection();a!==this.dir&&(this.dir=a,this.$node.css("direction",a),this.dropdownView.setLanguageDirection(a))},_updateHint:function(){var a,b,d,e,f,g=this.dropdownView.getFirstSuggestion(),h=g?g.value:null,i=this.dropdownView.isVisible(),j=this.inputView.isOverflow();h&&i&&!j&&(a=this.inputView.getInputValue(),b=a.replace(/\s{2,}/g," ").replace(/^\s+/g,""),d=c.escapeRegExChars(b),e=new RegExp("^(?:"+d+")(.*$)","i"),f=e.exec(h),this.inputView.setHintValue(a+(f?f[1]:"")))},_clearHint:function(){this.inputView.setHintValue("")},_clearSuggestions:function(){this.dropdownView.clearSuggestions()},_setInputValueToQuery:function(){this.inputView.setInputValue(this.inputView.getQuery())},_setInputValueToSuggestionUnderCursor:function(a){var b=a.data;this.inputView.setInputValue(b.value,!0)},_openDropdown:function(){this.dropdownView.open()},_closeDropdown:function(a){this.dropdownView["blured"===a.type?"closeUnlessMouseIsOverDropdown":"close"]()},_moveDropdownCursor:function(a){var b=a.data;b.shiftKey||b.ctrlKey||b.metaKey||this.dropdownView["upKeyed"===a.type?"moveCursorUp":"moveCursorDown"]()},_handleSelection:function(a){var b="suggestionSelected"===a.type,d=b?a.data:this.dropdownView.getSuggestionUnderCursor();d&&(this.inputView.setInputValue(d.value),b?this.inputView.focus():a.data.preventDefault(),b&&c.isMsie()?c.defer(this.dropdownView.close):this.dropdownView.close(),this.eventBus.trigger("selected",d.datum,d.dataset))},_getSuggestions:function(){var a=this,b=this.inputView.getQuery();c.isBlankString(b)||c.each(this.datasets,function(c,d){d.getSuggestions(b,function(c){b===a.inputView.getQuery()&&a.dropdownView.renderSuggestions(d,c)})})},_autocomplete:function(a){var b,c,d,e,f;("rightKeyed"!==a.type&&"leftKeyed"!==a.type||(b=this.inputView.isCursorAtEnd(),c="ltr"===this.inputView.getLanguageDirection()?"leftKeyed"===a.type:"rightKeyed"===a.type,b&&!c))&&(d=this.inputView.getQuery(),e=this.inputView.getHintValue(),""!==e&&d!==e&&(f=this.dropdownView.getFirstSuggestion(),this.inputView.setInputValue(f.value),this.eventBus.trigger("autocompleted",f.datum,f.dataset)))},_propagateEvent:function(a){this.eventBus.trigger(a.type)},destroy:function(){this.inputView.destroy(),this.dropdownView.destroy(),f(this.$node),this.$node=null},setQuery:function(a){this.inputView.setQuery(a),this.inputView.setInputValue(a),this._clearHint(),this._clearSuggestions(),this._getSuggestions()}}),b}();!function(){var b,d={},f="ttView";b={initialize:function(b){function g(){var b,d=a(this),g=new e({el:d});b=c.map(h,function(a){return a.initialize()}),d.data(f,new l({input:d,eventBus:g=new e({el:d}),datasets:h})),a.when.apply(a,b).always(function(){c.defer(function(){g.trigger("initialized")})})}var h;return b=c.isArray(b)?b:[b],0===b.length&&a.error("no datasets provided"),h=c.map(b,function(a){var b=d[a.name]?d[a.name]:new i(a);return a.name&&(d[a.name]=b),b}),this.each(g)},destroy:function(){function b(){var b=a(this),c=b.data(f);c&&(c.destroy(),b.removeData(f))}return this.each(b)},setQuery:function(b){function c(){var c=a(this).data(f);c&&c.setQuery(b)}return this.each(c)}},jQuery.fn.typeahead=function(a){return b[a]?b[a].apply(this,[].slice.call(arguments,1)):b.initialize.apply(this,arguments)}}()}(window.jQuery);
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="/typeahead.min.js"></script>
<script>
$(document).ready(function(){
$('input.typeahead').typeahead({
name: 'typeahead',
remote:'/search.php?key=%QUERY',
limit : 10
});
});
</script>
<script type="text/javascript">
$(document).ready(function () {
//Disable part of page
$('input#ara').bind('cut copy paste', function (e) {
e.preventDefault();
});
});
</script>
<script type="text/javascript">
function numbersonly(myfield, e, dec) {
var key;
var keychar;
if (window.event)
key = window.event.keyCode;
else if (e)
key = e.which;
else
return true;
keychar = String.fromCharCode(key);
// control keys
if ((key == null) || (key == 0) || (key == 8) ||
(key == 9) || (key == 13) || (key == 27))
return true;
// numbers
else if ((("ABCÇDEFGĞHIİJKLMNOÖPQRSŞTUÜVWXYZabcçdefgğhıijklmnoöpqrsştuüvwxyz0123456789").indexOf(keychar) > -1))
return true;
// decimal point jump
else if (dec && (keychar == ".")) {
myfield.form.elements[dec].focus();
return false;
}
else
return false;
}
</script>
我的另一个话题被标记为重复，但说实话，我真的不知道如何使这些建议的行适应我的js代码，以使其正常工作。
var myString = getElementById("input").value;
var withoutSpace = myString.replace(/ /g,"");
var length = withoutSpace.length;
答案 0 :(得分：0)
您只需获取值var val = Field.value;
，然后删除空格。
更改此行：
var val = Field.value.replace(/\s/g, '');
要：
\s我已经使用{{1}}发布的解决方案更改了正则表达式，该解决方案匹配所有类型的空间，而不仅仅是空格字符。
答案 1 :(得分：0)
您可以使用以下方法计算所有字符，包括空格：
var val = Field.value;
var chars = val.length;
然后你可以计算你有多少个空格：
var spacesArr = val.split(" ");
var spaces = spacesArr.length;
最后，如果你减去这些值，你就会得到实际的字符数：
var actualLength = chars - spaces;