使用数组来过滤数组的Javascript [英] Using an array to filter an array Javascript
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问题描述
我想看看每个值在一个阵列中，看看其中是否包含在其他任何数组值。
例如：
I am trying to look at every value in one array and see if any of them are contained in any of the other array values. Ex:
arrOne = ['a', 'b' ,'c' ];
arrTwo = ['option a', 'option c', 'option b', 'option d'];
所以，我希望它循环看到arrTwo每个值有从arrOne的一个值，并删除不要让我得到的：
So I want it to cycle through to see every value in arrTwo that has one of the values from arrOne and remove the ones that dont so I get:
arrFinal = ['option a', 'option c', 'option b'];
下面是code我一起工作：
Here is the code I am working with:
JavaScript的
JavaScript
function PreSaveAction() {
var Fields = ['input','select','textarea']
var ReqEmpty = 0;
var RowNum = ( $('table.input-table > tbody > tr').length);
var type = [];
var typeFinal = [];
var FieldType;
var FieldTypeNum;
for(var i=0; i<=(RowNum - 1); i++){
type.push( $("table.input-table > tbody > tr").eq(i).html());
};
alert(type.length);
//Where a need the filter code
//using Req as arrOne and type as arrTwo
for(var i = 0; i <= (type.length - 1); i++){
for(var ii = 0; ii <= (Fields.length - 1); ii++){
if(type[i].indexOf(Fields[ii]) == -1){
FieldType = (Fields[ii]);
break;
};
};
for(var i=0; i <= (Req.length - 1); i++){
if($('.more-options').is(':visible') && ($("" + FieldType + "[title=" +"'" + Req[i] + "'"+ "]").val() == "") )
{
ReqEmpty += 1;
};
};
};
if(ReqEmpty == 0)
{
return true;
}else if(ReqEmpty == 1){
alert("There is 1 empty required field");
return false;
}else{
alert("There are " + ReqEmpty + " empty required fields");
return false;
};
};
HTML与SharePoint生成
HTML Generated with SharePoint
<table border="0" cellspacing="0" width="100%" class="input-table">
<tr>
<td width="190px" valign="top" class="ms-formlabel">
<H3 class="ms-standardheader">
<nobr>Title<span class="ms-formvalidation"> *</span>
</nobr>
</H3>
</td>
<td width="400px" valign="top" class="ms-formbody">
<SharePoint:FormField runat="server" id="ff1{$Pos}" ControlMode="Edit" FieldName="Title" __designer:bind="{ddwrt:DataBind('u',concat('ff1',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Title')}"/>
<SharePoint:FieldDescription runat="server" id="ff1description{$Pos}" FieldName="Title" ControlMode="Edit"/>
</td>
</tr>
<tr>
<td width="190px" valign="top" class="ms-formlabel">
<H3 class="ms-standardheader">
<nobr>Selector<span class="ms-formvalidation"> *</span>
</nobr>
</H3>
</td>
<td width="400px" valign="top" class="ms-formbody">
<SharePoint:FormField runat="server" id="ff5{$Pos}" ControlMode="Edit" FieldName="Selector" __designer:bind="{ddwrt:DataBind('u',concat('ff5',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Selector')}"/>
<SharePoint:FieldDescription runat="server" id="ff5description{$Pos}" FieldName="Selector" ControlMode="Edit"/>
</td>
</tr>
<tr>
<td width="190px" valign="top" class="ms-formlabel">
<H3 class="ms-standardheader">
<nobr>Required Hidden 1</nobr>
</H3>
</td>
<td width="400px" valign="top" class="ms-formbody">
<SharePoint:FormField runat="server" id="ff2{$Pos}" ControlMode="Edit" FieldName="Required_x0020_Hidden_x0020_1" __designer:bind="{ddwrt:DataBind('u',concat('ff2',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Required_x0020_Hidden_x0020_1')}"/>
<SharePoint:FieldDescription runat="server" id="ff2description{$Pos}" FieldName="Required_x0020_Hidden_x0020_1" ControlMode="Edit"/>
</td>
</tr>
<tr>
<td width="190px" valign="top" class="ms-formlabel">
<H3 class="ms-standardheader">
<nobr>Required Hidden 2</nobr>
</H3>
</td>
<td width="400px" valign="top" class="ms-formbody">
<SharePoint:FormField runat="server" id="ff3{$Pos}" ControlMode="Edit" FieldName="Required_x0020_Hidden_x0020_2" __designer:bind="{ddwrt:DataBind('u',concat('ff3',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Required_x0020_Hidden_x0020_2')}"/>
<SharePoint:FieldDescription runat="server" id="ff3description{$Pos}" FieldName="Required_x0020_Hidden_x0020_2" ControlMode="Edit"/>
</td>
</tr>
<tr>
<td width="190px" valign="top" class="ms-formlabel">
<H3 class="ms-standardheader">
<nobr>Not Required Hidden 1</nobr>
</H3>
</td>
<td width="400px" valign="top" class="ms-formbody">
<SharePoint:FormField runat="server" id="ff4{$Pos}" ControlMode="Edit" FieldName="Not_x0020_Required_x0020_Hidden_" __designer:bind="{ddwrt:DataBind('u',concat('ff4',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Not_x0020_Required_x0020_Hidden_')}"/>
<SharePoint:FieldDescription runat="server" id="ff4description{$Pos}" FieldName="Not_x0020_Required_x0020_Hidden_" ControlMode="Edit"/>
</td>
</tr>
<tr>
<td width="190px" valign="top" class="ms-formlabel">
<H3 class="ms-standardheader">
<nobr>Did It Work</nobr>
</H3>
</td>
<td width="400px" valign="top" class="ms-formbody">
<SharePoint:FormField runat="server" id="ff6{$Pos}" ControlMode="Edit" FieldName="Did_x0020_It_x0020_Work" __designer:bind="{ddwrt:DataBind('u',concat('ff6',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Did_x0020_It_x0020_Work')}"/>
<SharePoint:FieldDescription runat="server" id="ff6description{$Pos}" FieldName="Did_x0020_It_x0020_Work" ControlMode="Edit"/>
</td>
</tr>
<tr id="idAttachmentsRow"><td nowrap="true" valign="top" class="ms-formlabel" width="20%"><SharePoint:FieldLabel ControlMode="Edit" FieldName="Attachments" runat="server" /></td><td valign="top" class="ms-formbody" width="80%"><SharePoint:FormField runat="server" id="AttachmentsField" ControlMode="Edit" FieldName="Attachments" __designer:bind="{ddwrt:DataBind('u','AttachmentsField','Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Attachments')}" /><script>
var elm = document.getElementById("idAttachmentsTable");
if (elm == null || elm.rows.length == 0)
document.getElementById("idAttachmentsRow").style.display='none';
</script></td></tr>
<xsl:if test="$dvt_1_automode = '1'" ddwrt:cf_ignore="1">
<tr>
<td colspan="99" class="ms-vb">
<span ddwrt:amkeyfield="ID" ddwrt:amkeyvalue="ddwrt:EscapeDelims(string(@ID))" ddwrt:ammode="view"></span>
</td>
</tr>
</xsl:if>
</table>
任何帮助将AP preciated
Any help would be appreciated
推荐答案
这可能不是这样做的最佳方式，但它确实工作。它使用类型arrTwo和所需物品的ArrOne。
This is probably not the best way of doing this, but it does work. It uses type for arrTwo and Req for ArrOne.
for(var i = (type.length - 1); i >= 0 ; i--){
var SpliceVal = 0;
for(var ii = 0; ii <= (Req.length -1); ii++){
if(type[i].indexOf(Req[ii]) == -1){
SpliceVal += 1;
};
};
if(SpliceVal == Req.length){
type.splice(i, 1);
};
};
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