10 examples of 'ejs if else' in JavaScript

119
function genIf (el: any): string {
120
  el.ifProcessed = true // avoid recursion
121
  return genIfConditions(el.ifConditions.slice())
122
}

257
function genIf (el) {
258
    el.ifProcessed = true;
259
    if (!el.ifConditions.length) {
260
        return '_e()';
261
    }
262
    return `(${el.ifConditions[0].exp})?${genElement(el.ifConditions[0].block)}: _e()`
263
}

56
else(e) {
57
  this.els = e;
58
  return this;
59
}

934
function JSIfElse(cond, truebody, falsebody) {
935
    this.cond      = cond;
936
    this.truebody  = truebody;
937
    this.falsebody = falsebody;
938
}

22
function IF(condition, ifContents, elseContents){
23
	this.condition = condition;
24
	this.ifContents = ifContents;
25
	this.elseContents = elseContents;
26
}

133
if(expression) {
134
  return {
135
    $type: "if",
136
    condition: this._getParamNames(arguments[0])[0],
137
    expression: expression,
138
    children: arguments[1]
139
  }
140
}

104
function If(condExpr, thenExpr, elseExpr) {
105
  this.tag = "If";
106
  this.condExpr = condExpr;
107
  this.thenExpr = thenExpr;
108
  this.elseExpr = elseExpr;
109
}

9
export function compileIf(compiler: Compiler, node: typescript.IfStatement): binaryen.Statement {
10
  const op = compiler.module;
11
12
  return op.if(
13
    compiler.compileExpression(node.expression, reflection.intType, reflection.intType, true),
14
    compiler.compileStatement(node.thenStatement),
15
    node.elseStatement ? compiler.compileStatement(node.elseStatement) : undefined
16
  );
17
}

73
function if_expr(condition, then, _else) {
74
  return { 'if': condition, then: then, 'else': _else };
75
}

103
function genIfConditions (conditions) {
104
  if (!conditions.length) {
105
    return '_e()'
106
  }
107
108
  const condition = conditions.shift() // 因为我们并没有去真正删除 el.ifConditions 队列的元素，所以需要有el.ifProcessed = true来结束递归
109
  if (condition.exp) {
110
    return `(${condition.exp})?${genTernaryExp(condition.block)}:${genIfConditions(conditions)}`
111
  } else {
112
    return `${genTernaryExp(condition.block)}`
113
  }
114
115
  function genTernaryExp (el) {
116
    return genElement(el)
117
  }
118
}