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POtargeting form fields at once(JavaScript shorthand kinda?)
 

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    <p>So long story short, i have some forms (2) of them that, need different types of validation...for the sake of argument, lets say i want to check for empties or "" values on all of the forms fields.</p> <p>if i have for example 3 fields, how can i check for empties in those 3 fields at the same time without writing code for all of them...</p> <p>what i mean is...for example:</p> <p>heres some sample code:</p> <p>JS: </p> <pre><code>var test = document.getElementById("loginUsername");//this is the username field// test.onfocus = removeVal; test.onblur = inserDefVal; function removeVal(){ if(test.value == "Enter your Username"){ test.value = ""; } } function inserDefVal(){ if(test.value == ""){ test.value = "Enter your Username"; } } </code></pre> <p>now although i have those 2 functions to check for field values, if i have 3 fields, that means id have to have a list of</p> <pre><code>test.onfocus = removeVal; test.onblur = inserDefVal; test2.onfocus = removeVal; test2.onblur = inserDefVal; test2.onfocus = removeVal; test2.onblur = inserDefVal; </code></pre> <p>now imagine all other fields in a form that i want to check for empties...ill have a SUPER long list lol..</p> <p>so my quesiton is, is there a way to maybe, put all these into one... and or maybe</p> <p>like a general function/or action that says something like </p> <p>(logic i mean) here comes pseudo code --</p> <p><code>if(this.value =="") do xyz</code>....and "this" being the field im mousing over. </p> <p>or if say, i was to somehow..for example, put all the button names/variable names in an Array, and say its called ArraOfButtons, and then</p> <pre><code>ArrayOfButtons.onmouseover/out = function..... </code></pre> <p>I hope im not too confusing...im just looking for a way to write better,faster cleaner code because as you can see above, if i have those test1/2/3 to just check for empties, then imagine checking for dates and other values....the page would be SUPER long.</p> <p>in short, im looking for like a CSS shorthand kinda thing where, instead of one writing</p> <pre><code>margin-top:10px / margin-bottom:10px / margin-left/right:10px </code></pre> <p>one would just do</p> <p>margin:10px;</p> <p>Any tips/links/info i gladly appreciate.</p> <p>Thanks in advanced.</p>
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