A JavaScript module that uses Qentem library for fast template rendering.
- Fast template rendering.
- Low memory usage.
- Safe evaluation.
- Variable replacement with HTML auto-escape.
- Raw variable replacement without HTML auto-escape.
- Nested loop (with data grouping and sorting).
- Nested if condition.
- Inline if.
- Math tag.
Templates can be tested live @ JQen Tool
var Module, data, template = `
<div>{var:v1}</div>
<div>{var:sub-list1[sv1]}</div>
<div>{var:sub-list2[0]}</div>
`;
data = '{"v1":"Qentem","sub-list1":{"sv1":"JQen"},"sub-list2":[77]}';
Module = {
onRuntimeInitialized: function () {
document.getElementById("main").innerHTML = Module.JQen_Render(template, data);
}
};var Module, data, template = `
<div>0.1+0.2 is: {math: 0.1 + 0.2 }</div>
<div>{var:Equation} = {math:{var:Equation}}; (1+8+1)</div>
<div>6^2 = {math:6^2}</div>
<div>--1 = {math:--1}</div>
<div>{var:one}+{var:three} = {math:{var:one}+{var:three}}</div>
<div>9 % 5 = {math:9 % 5}</div>
`;
data = '{"Equation":"1+4*2+1","one":"1","three":"3"}';
Module = {
onRuntimeInitialized: function () {
document.getElementById("main").innerHTML = Module.JQen_Render(template, data);
}
};var Module, data, template = `
<div>{if case="{var:one} + {var:two} >= {var:three}" true="3" false="not three"}</div>
<div>{if case="{var:one}" true="{var:one}" false="not one"}</div>
{if case="{var:name} == Qentem" true="<div>Qentem!</div>"}
`;
data = '{"one":"1","two":"2","three":"3","name":"Qentem"}';
Module = {
onRuntimeInitialized: function () {
document.getElementById("main").innerHTML = Module.JQen_Render(template, data);
}
};var Module, data, template = `
<loop set="object" value="item">
<div>item[var1] item[var2] item[var3] item[var4]</div>
</loop>
<br />
<loop set="array" value="item">
<div>item[0] item[1] item[2] item[3]</div>
</loop>
`;
data = `
{
"object": [
{
"var1": "value1",
"var2": "value2",
"var3": "value3",
"var4": "value4"
},
{
"var1": "value5",
"var2": "value6",
"var3": "value7",
"var4": "value8"
}
],
"array": [
[
"value10",
"value20",
"value30",
"value40"
],
[
"value100",
"value200",
"value300",
"value400"
]
]
}`;
Module = {
onRuntimeInitialized: function () {
document.getElementById("main").innerHTML = Module.JQen_Render(template, data);
}
};var Module, data, template = `
<if case="{var:0} == 0">
<div>Zero!</div>
</if>
<if case="{var:1} == 0">
Zero!
<else />
<div>Not {var:0} but {var:1}.</div>
</if>
<if case="{var:2} == 0">
Zero!
<elseif case="{var:2} == 2" />
<div>Two!</div>
<else />
Not zero or one.
</if>
<if case="{var:2} == 0">
Zero!
<elseif case="{var:2} == 5" />
Two!
<elseif case="{var:3} == 3" />
<div>{var:3}</div>
<else />
Not zero or one or two.
</if>`;
data = "[0,1,2,3]";
Module = {
onRuntimeInitialized: function () {
document.getElementById("main").innerHTML = Module.JQen_Render(template, data)
}
};Templates can be tested live @ JQen Tool
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JQen Page Example</title>
</head>
<body>
<div id="main"></div>
<script>
var Module, data, template = `
<h2>Students</h2>
<loop value="department_val">
<h3>Major: department_val[major]</h3>
<ul>
<loop set="department_val[students]" value="student_val">
<li>
<span>Name: student_val[Name]</span>
<span>
GPA: student_val[GPA]
<if case="student_val[GPA] < 2.5"> (Inform adviser!)
<elseif case="student_val[GPA] >= 3.5" /> (President\'s List!)
<elseif case="student_val[GPA] >= 3.0" /> (Dean\'s List!)
</if>
</span>
</li>
</loop>
</ul>
</loop>`;
data = [
{
'major': 'Computer Science',
'students': [
{ 'Name': 'Oliver', 'GPA': 3.2 },
{ 'Name': 'Jonah', 'GPA': 3.8 },
{ 'Name': 'Jack', 'GPA': 2.8 }
]
},
{
'major': 'Math',
'students': [
{ 'Name': 'Maxim', 'GPA': 3.0 },
{ 'Name': 'Cole', 'GPA': 2.5 },
{ 'Name': 'Claire', 'GPA': 2.4 }
]
}
];
Module = {
onRuntimeInitialized: function () {
document.getElementById("main").innerHTML = Module.JQen_Render(template, JSON.stringify(data));
}
};
</script>
<script src="JQen.js"></script>
</body>
</html>Syntax @ Qentem-Engine/Template.md.
First: Install Emscripten
Then:
git submodule update --init
mkdir Build
em++ -Os -fno-exceptions -msimd128 -D QENTEM_MSIMD128=1 --bind -I ./qentem/Include ./Source/QLib.cpp -o ./Build/JQen.jsNote: A compiled WASM file is @ releases
MIT License
Copyright (c) 2020 Hani Ammar
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.