1. Registered User
Join Date
Jan 2003
Location
Miamisburg, Ohio
Posts
6

## Enforce Precision

I am a JS newbie and have received my first task. I need to write a function that will enforce precision.

I will need to test for NAN. If it's a string, I will need to convert it to a number and then enforce the precision to two decimals places.

Does anyone have a similiar script I can take a look at? Or any suggestions for me?

In addition, I will then need to round up.

Cathy Myers

2. You might want to try something like this

if(!isNaN(str){
//str is a number
//convert it to number
/for integer
var iStr = parseInt(str);
//for float
fStr = parseFloat(str);
}else{//not a number
}

for roundup.
Math.round(num);

Look at the documents for JavaScript Math object.
at
http://developer.netscape.com/docs/m...jsref/math.htm

Hope this helps

Khalid

3. Registered User
Join Date
Jan 2003
Location
Miamisburg, Ohio
Posts
6
Khalid,
Thank you for your suggestions, it got me started. The final function looks like this:

function enforcePrecision(sValue, iPrecision, sDirection){
fValue = parseFloat(sValue); //Convert to number
if(!isNAN(value)){
var sPrecision = "1"
for(var i=0; i < iPrecision-1; i++){
sPrecision += "0"
}
iPrecision = parseInt(sPrecision);
fValue *= iPrecision; //Multiply by value
eval(value);

if(!sDirection){
fValue = Math.round(fValue); //Undefined direction
}
if(sDirection == "Down"){
fValue = Math.floor(fValue); //Round down
else
fValue = Math.ceil(fValue); //Round up
}
value /= iPrecision;
return value;
}
}

There are currently 1 users browsing this thread. (0 members and 1 guests)

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•

"

"

## X vBulletin 4.2.2 Debug Information

• Page Generation 0.12362 seconds
• Memory Usage 2,839KB
• Queries Executed 13 (?)
Template Usage (32):
• (1)footer
• (1)forumjump
• (1)forumrules
• (1)gobutton
• (3)memberaction_dropdown
• (1)navbar
• (1)navbar_moderation
• (1)navbar_noticebit
• (1)navbar_tabs
• (2)option
• (3)postbit
• (3)postbit_onlinestatus
• (3)postbit_wrapper
• (1)spacer_close
• (1)spacer_open
• (1)tagbit_wrapper

Phrase Groups Available (6):
• global
• inlinemod
• postbit
• posting
• reputationlevel
Included Files (26):
• ./global.php
• ./includes/class_bootstrap.php
• ./includes/init.php
• ./includes/class_core.php
• ./includes/config.php
• ./includes/functions.php
• ./includes/class_friendly_url.php
• ./includes/class_hook.php
• ./includes/class_bootstrap_framework.php
• ./vb/vb.php
• ./vb/phrase.php
• ./includes/functions_calendar.php
• ./includes/functions_bigthree.php
• ./includes/class_postbit.php
• ./includes/class_bbcode.php
• ./includes/functions_reputation.php
• ./includes/functions_notice.php
• ./packages/vbattach/attach.php
• ./vb/types.php
• ./vb/cache.php
• ./vb/cache/db.php
• ./vb/cache/observer/db.php
• ./vb/cache/observer.php

Hooks Called (70):
• init_startup
• friendlyurl_resolve_class
• init_startup_session_setup_start
• database_pre_fetch_array
• database_post_fetch_array
• init_startup_session_setup_complete
• global_bootstrap_init_start
• global_bootstrap_init_complete
• cache_permissions
• fetch_foruminfo
• global_state_check
• global_bootstrap_complete
• global_start
• style_fetch
• global_setup_complete
• strip_bbcode
• friendlyurl_clean_fragment
• friendlyurl_geturl
• forumjump
• cache_templates
• cache_templates_process
• template_register_var
• template_render_output
• fetch_template_start
• fetch_template_complete
• parse_templates
• notices_check_start
• notices_noticebit
• process_templates_complete
• friendlyurl_redirect_canonical
• bbcode_fetch_tags
• bbcode_create
• postbit_factory
• postbit_display_start
• postbit_imicons
• bbcode_parse_start
• bbcode_parse_complete_precache
• bbcode_parse_complete
• postbit_display_complete
• memberaction_dropdown
• tag_fetchbit_complete
• forumrules
• navbits
• navbits_complete