JS1k: The JavaScript code golfing competition
2010 - The Original
- Author:
- Benji Schwartz-Gilbert
- Twitter:
- @
- GitHub:
- Facebook:
- Google+:
- +
- Reddit:
- /r/
- Pouet:
- Website:
- blueklaxons.net
- Compo:
- classic
- Demo link:
- https://js1k.com/2010-first/demo/790
- Shortlink:
- https://js1k.com/790
- Blog post:
- please update here!
- Bytes:
- 1021
- Chars:
- 1021
- Submission
_={};_.c=document.body.children.c;_.c.id="_c";_.c.style.backgroundColor="#000";_s=[''];_.u=3000;_.x=4;_.y=30;_.z=0;_.v=function(k){$.fillStyle=k};_.c.height=_.c.width=_.u;$=_.c.getContext("2d");_.n=function(t){t=t||">> ";_.x=4;_.y+=20;$.fillText(t,_.x,_.y);_.x+=30};_.w=function(m){_.v(_.g);$.fillText(m,_.x,_.y);_s[_.z]+=m;_.x+=$.measureText(m).width};_.h=function(e){_.v('#000');_.x=34;$.fillRect(_.x,_.y-15,_.u,_.y);_s[_.z]='';_.w(e.slice(0,e.length-1))};_.d=function(e){_k=e.charCode||e.keyCode;_k==13?_q._(_s[_.z]):_k==8?'':_.w(String.fromCharCode(_k));return false};_q={_:function(__){if(__=='c0w')_.g='#'+parseInt(Math.random()*0xFFF).toString(16);else if(__!=''){try{_.n(eval(__))}catch(e){_.v('#f00');_.n("Bad expression: "+e.message);_.v(_.g)}}_s[_.z+=1]='';_.n()}};this.onkeypress=_.d;this.onkeydown=function(e){if(e.keyCode==8){e.preventDefault();_.h(_s[_.z])}};_.v(_.g='#3AD');$.font="9px verdana";$.fillText("mmm tasty command line",5,29);$.font="15px verdana";$.fillText("JS interactive shell",5,17);_.n();- Description
- Canvas based JavaScript command line Completely canvas rendered (no input/textarea elements or overlays) active command line which lets you build JS scripts on the fly. Features: -- Built in memory; stores assigned variables for you to be used later -- Colorful error message with details on what went wrong -- Namespaced to prevent (most) collisions with code you write and the running script -- HIDDEN EASTER EGG: Have fun with it :) How to use: Set variables: variable_name = function/value/object (don't use var in front of name) Use variables: Call the variable name directly (i.e. x*y) Use function: variable_name(arguments) Backspace key deletes, Enter executes line, functional shift for uppercase/alt-punctuation, arrows keys are symbol shortcuts (I claim feature :D)
- Base64 encoded
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Original source not submitted